释义：
call back 打回电话
接电话不太方便，过一会再打回去的意思 ( call again ) 。后面也可以用 later 或 in+时间副词。
例句：
Could you call back later? I'm tied up right now.
你能过一会再打来吗？我现在有点忙。
I've got to go. I'll call back later.
我得挂电话了，回头打给你。
I'll have him call you back as soon as he gets home.
我会跟他说，一回到家就给你打电话。
Please call me back in ten minutes.
请在 10 分钟后再打来。
对话：
A: Could you tell him to call back after lunch?
你能叫他午餐之后打来吗？
B: I'll tell him right now.
我现在就跟他说。
