一旦找到合适的卡片，他们就要面对另一个问题了，在卡片的另一面写些什么。

Once they find the right card, they are faced with the problem of what to write on the other side.

youdao

一旦找到合适的卡片，他们就要面对另一个问题了，在卡片的另一面写些什么。

Once they find the right card, they are faced with the problem of what to write on the other side.

youdao