1 a change of pace 节奏变换
You can’t do these chemistry experiments all day long. You certainly need a change of pace.
2 a far cry from 相距甚远
The published book is far cry from the early manuscript.
3 and how 的确
A: She’s a good dancer.
B: and how.
4 a matter of time 时间问题
It is only a matter of time.
5 a phone call away 一个电话之远（随时愿意过来帮忙）
If you need my help,do let me know. Just remember I am a phone call away.
6 a while back 不久以前
7 all along 一直
I knew it all along.
8 anything but 绝对不
I was anything but happy about going.
9 account for 解释
How do you account for it?
10 after all 到底
A: I’ve just seen the X-rays and your teeth look just fine，
B: I see. Then there is nothing to worry about after all.