I think we should take care of the environment, so that we have something to leave for our children.
我觉得我们应该保护好自然,以便将来能给我们的子孙后代留下一些东西。
You are better now, but you mustn't get up yet. You must stay in bed for another two days.
你现在好些了,但你还不应该起床。你必须再卧床两天。