activity /ækˈtɪvəti/ noun plural activities
plural activities
Learner's definition of ACTIVITY
1
[noncount] : the state of being active热闹状况;活跃的气氛 : behavior or actions of a particular kind活动;行动;行为 -
the sexual activity of married couples已婚夫妇的性行为
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The police are now monitoring criminal/gang/drug activity in the area.警方正在监视这一地区的犯罪/帮派/毒品活动。
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There has been an increase in the city's (level of) economic activity.这一城市的经济活动水平已有所提高。
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She gets at least 30 minutes of physical activity every day.她每天至少进行30分钟的体育活动
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The instruments are used to detect volcanic activity on the island.这些仪器是用来探测岛上火山活动情况的。
2
[count] : something that is done as work or for a particular purpose活动;工作—
usually plural通常用复数 3
[count] : something that is done for pleasure and that usually involves a group of people消遣活动;集体娱乐活动 —
usually plural通常用复数