You might ask your brother, "Is it okay if I borrow your car?"
你可以问你哥哥,“我可以借你的车吗?”
Unless the elder brother is very sickly, I suppose you would not ask above fifty thousand pounds.
我想,除非哥哥身体太坏,你讨起价来总不能超过五万镑。
Could I possibly ask you to meet my brother at the railway station?
能麻烦你到火车站接我哥哥吗?
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