你能猜出他多大年纪吗？

Can you guess how old he is?

youdao

只是不知他多大年纪？

Wonder how old he is?

youdao

请让我清楚他多大年纪。

Please let me knowing how old he is.

youdao

他多大年纪？

What age is he?

youdao

假定他还活着，现在有多大年纪了？

Assuming (that) he's still alive, how old would he be now?

《牛津词典》

我不知道他有多大年纪。

I wondered how old he was.

youdao

我问他现在多大年纪了，他坚持说自己一岁了。

When I asked him his current age he insisted that he was one year old.

youdao

我想知道他有多大年纪。

I wonder about his age.

youdao

我想知道他有多大年纪。

I wonder about his age.

youdao