我把博客放在最后讲，是因为它是我把上述内容转变成知识的过程中，扮演着最重要的角色的工具，至少我是这么定义的。

I put blogging last because it is the tool that plays the biggest role in transforming all of the above into learning, at least as I define it.

youdao

我选择了它作为我的专业是因为我觉得化学在我们的日常生活中扮演着一个重要的角色。

I chose it as my major because I think chemistry plays an important part in our daily life.

youdao

以前我是一名推销员，它让我慢慢体会到我在这个社会扮演着怎样的角色，教会我这样一刚毕业的大学生如何从大学校园走向社会，教会了我如何成为一个服务型人员来服务这个社会。

I was a salesman in the past. It was my first job which makes me know that the role I play in the society. And it also teach me how to become a service-oriented staff in the world.

youdao

So I'm standing in for you, right, if you are the subsequent reader? -Yes.

所以说我也扮演着你的角色，假设你是读者，-不错。

普林斯顿公开课 - 人性课程节选

But I'm sure, like, the Internets, probably, that probably plays a part of things too.

但我很确定，网络在其中也扮演着重要的角色。

理想是当密码专家 - SpeakingMax英语口语达人

I think that America has an important role to play to have the standards increased.

我觉得美国在提高标准方面扮演着重要的角色。

爱护小朋友 - SpeakingMax英语口语达人