If you hope to keep your job, you'd better get on the ball.

　　如果你不想丢工作，就最好用点心。

　　get on the ball直译过来就是：“把球抢到手”，这个短语的正确意思是：“工作出色，用心工作”。因此，当美国人说"If you hope to keep your job, you'd better get on the ball."时，他/她要表达的意思就是"If you want to have this job, you must try your best to do it."、"If you don't want to lose your job, you have to work hard."。

　　情景对白：

　　Boss: If you hope to keep your job, you'd better get on the ball.

　　老板：如果你不想丢工作，就最好用点心。

　　Shirley: Sorry, sir. I'm out of sorts these days. I will put my heart and soul into my work later on.

　　雪莉：对不起，老板。我这几天身体不舒服，以后我会全心全意工作的。

　　搭配句积累：

　　①You have made several mistakes this week.

　　这周你已经出了好几次差错了。

　　②You aren't focusing your attention on your work recently.

　　最近，你的心思可没放在工作上啊。

　　③I have reminded you the importance of the job several times.

　　我已经提醒你很多次，这份工作很重要。

　　④Some workers are going to be laid off in our department.

　　我们部门正打算裁人呢。

　　单词：

　　out of souts 身体不适

　　I've been feeling a bit out of sorts lately.

　　近来我身体有些不适。

　　I'm feeling rather out of sorts these days.

　　这些天我觉得很不舒服。

　　Everyone seems out of sorts today.

　　今天大家看起来都无精打采的。