TV was the one activity that showed a negative relationship.

看电视是唯一一项显示与快乐有负相关关系的活动。

youdao

There is most likely more than one activity for each change request.

每个便根个请求很可能有更多的活动。

youdao

And in 1984, it was authorized as one activity in Olympic Games.

在1984年，它被正式列为奥林匹克的一项运动。

youdao

But one activity that legally is only supposed to be for people age twenty-one and over is drinking alcohol.

VOA: special.2009.08.07

Right now, with our 50, 80, 100 years, we don't fill our day doing only one kind of activity.

在眼下的有限生命中，我们也没有每天只从事一项活动。

耶鲁公开课 - 死亡课程节选

It's as if "thinking nothing" is not a passive activity, but an active one.

好像“脑子里一片空白“,不是一种被动行为，而是主动的似的。

耶鲁公开课 - 1945年后的美国小说课程节选

Choose one activity from your daily routine: showering, your commute, brushing your teeth, drinking coffee.

FORBES: Tired, Stressed Out, Need A break? Recognize It But Don't React

When you regulate one activity, people will find ways to innovate around the regulations.

FORBES: Lemonade and Liberty

In fact, the brain must disengage from one activity in order to engage in another.

FORBES: Multitasking, Body Language, and Leadership