Bump in the Road
A temporary problem, a small setback
一个暂时的问题，一个小小的挫折
- Most companies hit a bump in the road at some point.
Carry Coals to Newcastle
Supply something that is unneeded
做徒劳多余的事，如同井边挑水井边卖
- Exporting pine to Scandinavia seems like carrying coals to Newcastle.
Criticize the Paint Job on the Titanic
To obsess over small flaws and miss serious ones
过于着眼于小瑕疵，而忽略了大问题
- Sally will sometimes miss the big picture and criticize the paint job on the Titanic.
Drive a hard bargain
To arrange a transaction so that it benefits oneself
极力讨价还价
- The unions are driving a hard bargain on pay.
Fifth Wheel
A superfluous person
冗员，不需要的人；无足轻重的人
- There is no inherent reason for adding a fifth wheel to the coach.
Fly High
Be very successful, especially temporarily
非常成功，尤指暂时的
- Only with him can my heart fly high.
Rock the Boat
Cause a disruption in a group
惹麻烦；惹事；捣乱
- Don't rock the boat until the negotiations are finished.
Train Has Left the Station
The process is already underway
事情已经发生，无法挽回，引申指机会已经错过
- Moscow and Beijing don't really believe that, but the fact is, that train has left the station.
(To) Send Flying
Knock something into the Air
（使）猛然跌倒；（使）飞出去
- I tripped going up the stairs and my books went flying.
