If you can't do better than that, go back to your room.
如果你不能表现的好一点的话, 你就回房去.

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我同学有一个小女儿, 约二岁左右的年纪. 这个年龄的小孩可真是皮的很. 她妈妈每次都是这样教训她, If you can't do bettr than that, you .... 这样的句子可以用在许多场合, 例如她吃饭时食物掉的满地都是, 或是她跟其他小朋友玩的时候吵起来的, 都可以这么跟她说.

If you can't do better than that ,go back to your room.

If you cannot do better than that, do something else

if you cant do better than that

All work and no play makes Jack a dull boy.(只会用功不会玩耍,聪明孩子也会变傻)
     If you can not do better than that ,go and have a good rest.

If you can't do better than that, go back to your room.
如果你不能表现的好一点的话, 你就回房去.

If you cannot do better than that, go back to your room

If you can't better than that,go back to home.

If you can't do better than that, go back to your home.

If you can't do better than that,go back to your room.