这句英语怎么说第179期:把椅背放下来

How do I recline my seat?
我怎么把椅背放下来？
Could you put your seat up, please?
请竖直椅背好吗？

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Everybody, put your hands up for me!
大家把你的手举起来！
If you have the experience, please put your (right) hand up?
如果有过这个经验，请将手举起来！