S-9:shake a leg 赶快行动
A:Mum, where's my pencil-box?
A:妈，我的文具盒在哪儿呢？
B:It's on your bookshelf. I told you to get your things ready last night!
B:在你的书架上，我昨天不是告诉你让你把东西都收拾好吗？
A:I know. But I can't find my eraser.
A:知道了，我又找不着橡皮了。
B:Forget about it. Shake a leg. or you're going to be late.
B：别管他了，你快点儿吧！要不你上学就要迟到了。
