第一、迷你对话
A: Why are you walking to and fro in the room?
为什么一直在房间里走来走去的？
B: I’m worrying about the children. After all this is the first time they have been out without us.
我为孩子们担心。毕竟他们是第一次离开我们，走出家门。
A: Don’t worry. They are grown-ups.
别担心了，他们已经长大了。
B: I know. But I couldn’t help.
我知道，但是我忍不住。
