time for：为...的时间。
You'll have more time for schoolwork.
你会有很多的时间来做功课。
It just took time for people to realise how much had changed.
要人们认识到发生了多大变化，只是时间问题。
time to：到了...时间；...时间去做...。
You may need time to relax.
你可能需要时间放松一下。
It is time to broaden the dialogue.
现在是扩大对话的时候了。
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