Such a young child does not know chalk from cheese.

这样年幼的孩子是不辨是非的。

youdao

In fact, he often changes girlfriend, for he doesn't know chalk from cheese.

事实上，他经常换女友，因为他不知好歹。

youdao

In fact, he often changes girlfriend, for he doesn't know chalk from cheese.

事实上，他经常换女友，因为他不知好歹。

youdao