题目内容：

英语翻译
1.beat the air
2.you are wrong,please eat your words
3.i am going banana
4.practice makes perfect
我的错。我没说清 我要的是 英文翻译 把这俚语 翻译成 通俗英语

优质解答

1徒劳,白费力气
2你错了,请收回前言
3 我快疯了
4 熟能生巧
1 in vain
2 You are wrong.Please take back your words.
3 I'm going crazy.
4 Plenty of practice will make you perfect in what you are doing.