1.buff up 提高;使愉悅
I'm just trying to buff up my vocabulary.
我只是想提高自己的詞匯量 。
2.push comes to shove 事態嚴重;最后關頭
When push comes to shove, you are on your own.
如果形勢糟糕,你就只能靠自己了 。
3.be on the fence about 對...持觀望態度
They are sitting on the fence and refusing to commit themselves
他們保持中立,拒絕表態 。
4.rubbing elbows with 與...交往
In fact he really enjoys getting out and rubbing elbows with us ordinary people.
事實上,他還很喜歡和我們這些普通人交往 。