be silly 犯傻，做傻事

　　Why are you being silly again? What do you want?

　　你为什么又犯傻，你到底想干嘛？

　　Can we just stop being silly and do something?

　　我们可以停止犯傻，然后真正做点事情吗？

　　疯狂练习吧！