change into把...变成...
 

You can't change iron into gold.
 

你不能把铁变成金。
 

I want to change dollars into pounds.
 

我想把美元换成英镑。
 

A:Yesterday I bought a sweater from your store.and I'm afraid it's too small for.so I want to change that into a bigger one.
 

昨天我在你们店里买了一件毛衣，我恐怕它太小了，我想换个大一点了.
 

B:Ok,wait a minute.
 

好的，请稍等。
 

背景音乐：DJ Okawari-evening comes