be from和come from的区别和用法

come from意思来自某处；出生于；出身于。接形容词、以动词不定式的复合结构或介词短语充当补足语的复合宾语。

be from意思来自；接由名词、形容词、动词不定式、过去分词或介词短语充当补足语的复合宾语。

Where I come from, you don\'t rat on your friends.

在我的老家，谁都不出卖朋友。

Many of the best ideas come from doctors at the coalface.

许多最好的主意都来自临床医师。

Many of the best ideas come from doctors at the coalface.

许多最好的`主意都来自临床医师。

They come from totally different cultures.

他们来自完全不同的文化。