我在下午的活动中的出席是多余的。

My presence at the afternoon's proceedings was superfluous.

《柯林斯英汉双解大词典》

我们决心要杜绝体育竞技活动中的种族歧视现象。

We are determined to eradicate racism from our sport.

《牛津词典》

苹果，坚果和蜡烛是万圣节的许多迷信活动中的重要物品。

Apples, nuts and candles figured prominently in many of the superstitions practised at Halloween.

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It gives opportunity to reflect a lot, contemplate a lot about not only your own daily activities, but just what's going on in the world around you.

这是一次机会，让人反省沉思,自己的日常生活中的一些活动，也思考我们身边的世界。

普林斯顿公开课 - 人性课程节选

And so I was collecting from friends and colleagues' computers all sorts of logs that monitored the kind of low level activity that was happening on their computer.

因此我从朋友和,同事的计算机上收集各种各样的日志,这些日志用来监控,他们计算机中的低能级活动。

哈佛公开课 - 计算机科学课程节选

One of the primary characters in this whole scientific process is a researcher at Harvard named Walter Willett.

这项活动中的一个领军人物就是,哈佛一位名为沃尔特·威莱特的研究者

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选