| 单词 |
machine(machine, machinery, mechanism, apparatus, engine, motor) |
| 例句 |
machine, machinery, mechanism, apparatus, engine, motor
这些名词均有“机器，装置”之意。
machine → 普通用词，泛指一切机器。
machinery → 指机器的总称。
mechanism → 指运行系统，简单的机械装置。
apparatus → 指具有特殊用途的装置。
engine → 既可泛指或大或小、简单或复杂的机械、机器，又可指产生动力的发动机或引擎。
motor → 通常指小型或轻型马达、发动机。
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| 随便看 |
- under(below, beneath, under, underneath)
- undergo(undergo, experience, sustain, suffer)
- underground(underground, subway, tube)
- underneath(below, beneath, under, underneath)
- understanding(agreement, contract, treaty, convention, bargain, understanding, accord)
- understand(know, learn, comprehend, understand)
- understand(understand, comprehend, appreciate, apprehend, grasp)
- under(vice, associate, under, deputy)
- uneasy(nervous, restless, impatient, uneasy)
- unfold(unfold, open)
- unfortunate(unhappy, unfortunate, unlucky, disastrous)
- unhappy(miserable, wretched, unhappy, sorry)
- unhappy(sad, unhappy, gloomy, blue, sorrowful, melancholy)
- unhappy(unhappy, unfortunate, unlucky, disastrous)
- uniform(alike, like, similar, comparable, parallel, uniform, identical)
- uniform(clothes, clothing, coat, dress, garment, robe, gown, uniform, costume, suit)
- union(club, association, institute, league, union, society)
- union(league, federation, union, alliance)
- unique(only, single, sole, unique, alone)
- unite(join, combine, unite, connect, link, attach, couple, associate, relate)
- universal(common, ordinary, commonplace, general, usual, popular, universal)
- universe(space, universe, cosmos)
- university(college, university, institute, school, academy)
- unlucky(unhappy, unfortunate, unlucky, disastrous)
- unwilling(unwilling, reluctant)
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