我不能把这本书给你；我已经答应给苏珊了。

I can't give you the book; I've promised it to Susan.

youdao

我不能把这本书送给你，因为我已经答应把它送给苏珊了。

I can't give you the book; I've promised it to Susan.

youdao

我不能把这本书送给你，因为我已经答应把它送给苏珊了。

I can't give you the book; I've promised it to Susan.

youdao