I learn Japanese by watching Japanese movies.

我藉著看日本电影学日文。

youdao

By watching CD, I found that these ideas are wrong.

通过观看光盘，我才发现，原来这些想法都是错误的。

youdao

That's a great idea! Do you learn English by watching videos?

好主意！你通过看视频学习英语吗？

youdao

He learned to play the harmonica by watching an old man play the instrument.

VOA: special.2010.06.13

You have to test it by giving the vaccine to a large population of people, and then watching and seeing if you've reduced the incidence of the disease.

这样的测试的做法只能是,给大量人群分发疫苗,接着观察和了解,这种疾病的发病率是否有所降低

耶鲁公开课 - 生物医学工程探索课程节选

and just, you know, watching the world go by, so.

就这样，欣赏着周围的一切。

科芬园的氛围 - SpeakingMax英语口语达人

The woman said she gets her news from the Washington Post and by watching TV.

NPR: Libby Jury Selection Includes Some Surprises

Businesses of all sizes can learn from what not to do by watching GMC.

FORBES: GM's Failure Of Brand Management At GMC And Buick

If you're a doctor, you can even receive continuing medical education credit by watching it.

CNN: Change your lifestyle, reverse your diseases