是一固定句型，意为“当谈到……时”。

A When it comes to…

youdao

固定句型“对于某人来说做…是重要的。”

It is important for sb to do STH.

youdao

对某人来说，做某事没有必要。固定句型。

There is no need for sb. to do sth.

youdao

为固定句型，意为“你做某事真是太好了”。

B It's very kind of you to do STH.

youdao

为固定句型，意为“你做某事真是太好了”。

B It's very kind of you to do STH.

youdao