商務英語：今日熱詞——努力 

污點（名詞）

(noun) A mark of disgrace.

EXAMPLE: The ambitious executive refuses to believe that the failures of his previous companies was a stigma, and he is eagerly starting a new commercial venture.

這位雄心勃勃的高管拒絕承認他的前公司倒閉是個污點，他正渴望開始新的商業冒險。

to knock oneself out

努力（非正式）

(INFORMAL) To work very hard to accomplish something; to make a strenuous effort.

EXAMPLE: Working all weekend, day and night, the young marketing director really knocked himself out to make an impressive presentation at our meeting Monday morning.

經過了整個周末沒日沒夜的工作，這位年輕的營銷總監終于努力在我們周一的晨會上做了一個精彩的演講。