A Task commonly requires more than one person to complete all of the work involved, therefore Activities collectively complete a Task.

一个任务通常需要更多的人来完成所包含的所有工作，因此活动共同完成一个任务。

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How to deal with depression? Depression can make a person feel unusually sad, worthless, uninterested in activities that used to be fun, restless or even suicidal.

患抑郁症的人通常会感到异常忧伤、觉得人生毫无价值、对原本感兴趣的活动失去兴趣、烦躁、甚至会产生自杀的念头。

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An activity stream (also sometimes called a lifestream) is the collection of all the activities a person undertakes on a particular site.

活动流(activity stream)有时也称为生活日志(lifestream)，是某个人在一个特定网站上的所有活动的信息集合。

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A person is a body that has a certain set of abilities, can do a certain array of activities.

人是拥有一套特定能力的肉体,可以从事一系列特定的活动

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Not only were we more productive and engaged when we were brainstorming and strategy planning together, physically, but the in-person teambuilding activities also enabled us to trust and care for each other even more than before.

FORBES: Top 4 Benefits Of Face-to-Face Team Meetings

Matthew Yale, deputy chief of staff to Education Secretary Arne Duncan, is the department's point person on interagency activities.

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These companies have created Facebook apps that can post all of a person's activities on Facebook's new "ticker, " which appears in the top right-hand corner of the site's homepage.

CNN: Facebook revamps site with 'Timeline' and real-time apps