1.a phone call away 一个电话之远，愿意过来帮忙。
If you need my help, do let me know. Just remember I am a phone call away.
2. a while back 不久以前
3.all along 一直
I knew it all along.
4.anything but 绝对不
I was anything but happy about going.
5.account for 解释
How do you account for it?
