写作的过程由四个阶段组成，每个阶段都包含一定的活动。

The writing process is made up of four stages, and each stage involves certain activities.

youdao

然而，几乎毫无疑问，大多数地区的沙漠化主要是由于人类活动而不是自然过程造成的。

There is little doubt, however, that desertification in most areas results primarily from human activities rather than natural processes.

youdao

只有当消费者被激励并能够经历费力的认知过程时，推理活动才可能发生。

Inferential activity is likely only when consumers are motivated and able to engage in effortful cognitive processes.

youdao

Yeah. I think one of the things that impress me in talking with you and looking at the work you have done is how pro-active you've been in going out and engaging in various communities.

是的，我认为你所作的工作以及,和你的交谈过程中令我印象深刻的地方,就是你能积极地走出去,并在不同的社区参加活动。

普林斯顿公开课 - 人性课程节选