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flag down 英 [flæɡ daun] 　美 [flæɡ daʊn]

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flag down

phrase. 打信号使停下　

Why do we take the flag down at night, when we just have to put it up again in the morning.　既然我们早上还得把旗升上去，那晚上为什么要把它降下来呢？

Shippea Hill is a request stop, so passengers must flag down the driver if they want to board.　西皮亚山火车站是招呼站，因此如果旅客想在该站上车，须打旗号向司机示意。

1. Why do we take the flag down at night, when we just have to put it up again in the morning.

既然我们早上还得把旗升上去，那晚上为什么要把它降下来呢？
2. Shippea Hill is a request stop, so passengers must flag down the driver if they want to board.

西皮亚山火车站是招呼站，因此如果旅客想在该站上车，须打旗号向司机示意。
3. If she needs anything, you are the one who is supposed to flag down the waiter by a gentle wave of the hand until one notices you.

如果她需要什么，你应该轻轻挥手直至引起一名侍者注意，叫他过来。