這句英語怎麼説第179期:把椅背放下來

How do I recline my seat?
我怎麼把椅背放下來？
Could you put your seat up, please?
請豎直椅背好嗎？

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Everybody, put your hands up for me!
大家把你的手舉起來！
If you have the experience, please put your (right) hand up?
如果有過這個經驗，請將手舉起來！