- 释义：
- n. 活动；活跃
- 构词：
- act行动,活动,做+ivity特性→活动
- 例句：
-
The house has been full of activity all day.
房子里整天都很热闹.
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There was a fury of activity on the morning of their departure.
他们离开的那个早上,群情激昂.
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The human brain is the centre of higher nervous activity.
人脑是高级神经活动的中心.
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