1 [U] a situation in which there is a lot of action or movement 繁忙的活动;热闹:
The house was full of activity on the morning of the wedding.举行婚礼的那个早上,房子里很热闹。 [OPP] inactivity 反义词为 inactivity
2 [C] something that you do, usually regularly and for enjoyment 所做的事(多指经常的和为消遣的):
The hotel offers a range of leisure activities.这家饭店提供许多休闲活动。☞Look at the note at act ². 参看act^2的注释。
activity/ækˋtIvətI; ækˈtIvəti or ækˈtIvIti/n plural activities 1 [C usually plural 一般用复数] something that you do for enjoyment in a regular organized way〔为了娱乐而经常从事的〕活动: leisure/recreational/social etc activities outdoor activities such as hiking and climbing 远足和登山之类的户外活动2 [C,U] things that people do to achieve a particular aim〔为达到某种目的而从事的〕活动﹐行动: political/business/economic etc activity the department's research activities 系里的研究活动terrorist activity 恐怖活动3 [U] when a lot of things are happening, or when people are moving around [ inactivity ] 热闹﹐活跃: The house is full of activity once the kids get home. 孩子们一回来﹐家里就很热闹。
activityactivityactivitiesnoun1(no plural) a lot of things happening and people doing things: On the day of the festival there was a lot of activity in the streets.2(pluralactivities) something that you do, usually regularly and because you enjoy it: The hotel offers a range of leisure activities.