be meant to do sth.... 做............是使命 例: he is meant to be a poet........ 他的人生使命就是成为一个诗人. meant to be done....... 应该 做的 / 完成的.... 例: where is your home work... it is meant to be done...你的作业呢....你应该完成了的啊 life is meant to be lives....生命是应该好好的 活过 / 珍惜 to do .... 去做, to be done ..... 被动词 请采纳谢谢