英语词汇“constant”的释义、区别辨析及用法例句-英语同义词词典

constantconstant /ˈkɑnstənt/ adjective 1 happening a lot over a long period of time► constant AWL

happening very often over a long period of time:

The car is old and needs constant attention to keep it running.

He keeps in constant contact with his family in Costa Rica.

► continual

continual means the same as constant:

He has a medical condition that needs continual attention, so he cannot leave his house.

► ongoing AWL

happening now and continuing over a period of time:

Police say they cannot discuss the ongoing investigation into the murder.

► persistent AWL

continuing to happen, even though you try to get rid of it. You use persistent especially about illnesses or problems that are not very serious:

Smoking has given him a persistent cough.

► chronic

a chronic illness, condition, or problem is one that continues for a long time and cannot be cured:

She has chronic asthma and has to carry an inhaler everywhere.

When the factories closed, people in the area suffered from chronic unemployment.

➔ see frequentADVERBS: constantYou can make the adjectives constant, continual, persistent, and chronic into adverbs by using an -ly ending: The car constantly needs repairing. | Unemployment is persistently high, despite efforts to get people back to work. | She stopped working in order to take care of her chronically ill child.2 continuing and never stopping► constant AWL

continuing and never stopping:

I’m so tired of listening to your constant whining.

He suffered constant pain in the months before his death.

► continuous

continuous means the same as constant but sounds more formal:

There has been continuous fighting on the border for the past week.

► perpetual

continuing forever or for a long time. You use perpetual especially about bad situations or feelings that do not change:

The people live in a perpetual state of fear because of the war.

► nonstop

without stopping, or seeming not to stop:

The movie is 120 minutes of nonstop action.

➔ GRAMMAR: Nonstop can also be used as an adverb: She was so excited that she was talking nonstop.

► never-ending

seeming to continue forever:

After the disaster, there was a never-ending flow of people coming to ask for help.

► relentless

if something bad is relentless, it never seems to stop or improve:

She was under relentless pressure from her parents to get good grades.

ADVERBS: constantYou can make the adjectives constant, continuous, perpetual, and relentless into adverbs by using an -ly ending: She constantly complains about everything. | Have you lived continuously in the United States for more than five years? | It rained relentlessly for two whole weeks.3 not changing and always the same► constant AWL

always staying at the same level or amount. Constant is used especially about temperature and speed:

We keep the room at a constant temperature to protect the old books from damage.

The boat moved ahead at a fairly constant speed.

► steady

staying the same for a long time, especially when this is a good thing:

She listened to the steady rhythm of her son’s breathing as he slept.

➔ You also use steady about things that change in the same way over a long period: There has been steady growth in the economy for the past six months.

► stable AWL

a situation that is stable stays the same, with no big changes or problems:

The weather conditions should remain stable for the rest of the week.

She comes from a stable family.

► consistent AWL

always doing something or always happening in the same way:

When you go to bed and get up at the same time each day, this consistent pattern helps you to sleep better.

► unchanging

staying the same for a very long time. Unchanging is usually used in formal writing:

We drove for miles through the unchanging flat landscape.

➔ see sameADVERBS: constantYou can make the adjectives steady, and consistent into adverbs by using an -ly ending: I could feel his heart beating steadily in his chest. | The White House consistently opposed the bill. Constantly is not used as an adverb with this meaning.

单词	constant
例句	constantconstant /ˈkɑnstənt/ adjective 1 happening a lot over a long period of time► constant AWL happening very often over a long period of time: The car is old and needs constant attention to keep it running. He keeps in constant contact with his family in Costa Rica. ► continual continual means the same as constant: He has a medical condition that needs continual attention, so he cannot leave his house. ► ongoing AWL happening now and continuing over a period of time: Police say they cannot discuss the ongoing investigation into the murder. ► persistent AWL continuing to happen, even though you try to get rid of it. You use persistent especially about illnesses or problems that are not very serious: Smoking has given him a persistent cough. ► chronic a chronic illness, condition, or problem is one that continues for a long time and cannot be cured: She has chronic asthma and has to carry an inhaler everywhere. When the factories closed, people in the area suffered from chronic unemployment. ➔ see frequentADVERBS: constantYou can make the adjectives constant, continual, persistent, and chronic into adverbs by using an -ly ending: The car constantly needs repairing. \| Unemployment is persistently high, despite efforts to get people back to work. \| She stopped working in order to take care of her chronically ill child.2 continuing and never stopping► constant AWL continuing and never stopping: I’m so tired of listening to your constant whining. He suffered constant pain in the months before his death. ► continuous continuous means the same as constant but sounds more formal: There has been continuous fighting on the border for the past week. ► perpetual continuing forever or for a long time. You use perpetual especially about bad situations or feelings that do not change: The people live in a perpetual state of fear because of the war. ► nonstop without stopping, or seeming not to stop: The movie is 120 minutes of nonstop action. ➔ GRAMMAR: Nonstop can also be used as an adverb: She was so excited that she was talking nonstop. ► never-ending seeming to continue forever: After the disaster, there was a never-ending flow of people coming to ask for help. ► relentless if something bad is relentless, it never seems to stop or improve: She was under relentless pressure from her parents to get good grades. ADVERBS: constantYou can make the adjectives constant, continuous, perpetual, and relentless into adverbs by using an -ly ending: She constantly complains about everything. \| Have you lived continuously in the United States for more than five years? \| It rained relentlessly for two whole weeks.3 not changing and always the same► constant AWL always staying at the same level or amount. Constant is used especially about temperature and speed: We keep the room at a constant temperature to protect the old books from damage. The boat moved ahead at a fairly constant speed. ► steady staying the same for a long time, especially when this is a good thing: She listened to the steady rhythm of her son’s breathing as he slept. ➔ You also use steady about things that change in the same way over a long period: There has been steady growth in the economy for the past six months. ► stable AWL a situation that is stable stays the same, with no big changes or problems: The weather conditions should remain stable for the rest of the week. She comes from a stable family. ► consistent AWL always doing something or always happening in the same way: When you go to bed and get up at the same time each day, this consistent pattern helps you to sleep better. ► unchanging staying the same for a very long time. Unchanging is usually used in formal writing: We drove for miles through the unchanging flat landscape. ➔ see sameADVERBS: constantYou can make the adjectives steady, and consistent into adverbs by using an -ly ending: I could feel his heart beating steadily in his chest. \| The White House consistently opposed the bill. Constantly is not used as an adverb with this meaning.
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