语音讲解：
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　　【听力问题】

　　What does the man do?

　　a. He is a doctor.

　　b. He is a waiter.

　　c. He is a manager.

　　【原句再现】

　　Get your job done quickly. Don't let the grass grow under your feet.

　　赶快做好你的工作，不要把时间浪费掉 。

　　【短语解析】

　　Not let the grass grow under one’s feet, 及时行动。

　　补充短语：hardy grass in the storm, 疾风劲草; as green as grass, 绿如青草, (喻)无生活经验的。