• bring-down失势

• The news of the airplane crash was a bring-down.

• MEANING: depressing

• buck美元

• Do you have a buck I can borrow?

• MEANING: dollar

• bummed不高兴的

• I was really bummed after I heard the news.

• MEANING: depressed

• bummer令人恶心的经历

• My trip to New York was a bummer.

• MEANING: bad experience

• bust失败的事

• The whole idea was a bust.

• MEANING: failure