| 单词 | wakeful |
| 例句 | wakeful adjective 1.•he had been wakeful all night:awake, restless, restive, tossing and turning. ANT asleep. 2.•I was suddenly wakeful:alert, watchful, vigilant, on the lookout, on one's guard, attentive, heedful, wary. ANT inattentive. |
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