take care可以单独做动词短语用。
take care意为“当心”，可单独使用或后接从句和动词不定式。同义词组为be careful和look out。
例句：Take care! There's a car coming towards you.
翻译：当心，有辆车朝你开来了!
近义词
look out
英[lʊk aʊt] 美[lʊk aʊt]
留神，当心，小心，（建筑物、窗户等）面向，朝向，对着
例句：“Look out!”somebody shouted, as the truck started to roll toward the sea.
翻译：卡车冲向大海时，有人大喊“当心！”。