1.red-letter day 重要的或值得纪念的日子
2.red tape 繁文缛节
Applying for approval involves a great deal of red tape. 申请批准牵涉许多繁文缛节。
3.red carpet 红地毯
4.run into 偶遇
I ran into an old friend in the shop yesterday. 昨天在商店碰到老朋友了。
5.run out of 用尽，缺少
Quick,quick,we are running out of time. 快点，我们的时间不多了。
