当陌生人走近时，狗叫了起来。

The dog barked when the stranger came near.

youdao

当陌生人站在你家门前是，你应该有所堤防。

You should be on guard when a stranger comes to your doors.

youdao

当陌生人或其他人接近时，他们是问候式微笑。

Then when a stranger approaches or someone else approaches there they'll tend to give more of a greeting smile.

youdao

Then when a stranger approaches or someone else approaches there they'll tend to give more of a greeting smile.

当陌生人或其他人接近时,他们是问候式微笑。

耶鲁公开课 - 心理学导论课程节选

When you speak in new language to somebody new on the streets in New York

当你用新的语言在纽约大街上同陌生人交谈时，

生存英语 - SpeakingMax英语口语达人