be on the ball

be on the ball

美 　英

• na.精力奋发地干
• 网络留心；在精力充沛地行动；知情

英汉解释

na.	1. 精力奋发地干,熟习内情

例句

But I would like to try a different kind of life. I prefer to be on the ball.

但是我想尝试另外一种生活，一种忙碌的生活。

A traffic police officer has to be on the ball and resolve problems quickly.

交通警察必须很有警觉性，能很快地解决问题。

As a politician, you must be on the ball in the election.

你是一名政治家，必须在选举中时刻警惕。

Mr. J hopes that what he has been writing will be on the ball.

先生希望他所写的文章都很出色。

If you want to finish this on time, you must be on the ball

如果你想及时完成这工作，就得干劲十足。