癞蛤蟆想吃天鹅肉 英文

reach for what is beyond one's grasp（想取得自己够不到的东西）
癞蛤蟆想吃天鹅肉是中文的习语，不能直接翻译成英文。否则会让老外迷惑的。这里要转译一下。以上是个人拙见，希望能帮上忙！

a toad wants to eat swan meat.
adidas--- impossible is nothing

Angels fly out of your arse.

aim too high on love

Bad men want to get what they want from beautiful girls.

A toad want to eat a swan