https://online2.tingclass.net/lesson/shi0529/0009/9907/409.mp3
https://image.tingclass.net/statics/js/2012
讲解文本：
on pins and needles 坐立不安，如坐针毡
I am going to be on pins and needles until I get that phone call from her.
在她给我打电话之前，我肯定要一直坐立不安了。
He tried to look calm but everybody knew he was on pins and needles.
他想装得很平静，但每个人都知道他很紧张。
疯狂练习吧!
