What can I get him for a birthday present?

我给他送点什么生日礼物呢？

《牛津词典》

She bought a birthday present for her mother.

她为她母亲买了一件生日礼物。

《柯林斯英汉双解大词典》

I'd like a yo-yo as my birthday present.

我想要一个溜溜球作为生日礼物。

youdao

So what I did was buy tickets to the exhibit and present them to him on his birthday.

所以我就买了展览会的票，在他生日那天送给了他。

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