自分勝手なことをしないでください!
Don't be selfish!
彼は自分勝手だ。
He's selfish.
彼は何かにつけ勝手なまねをしたがる。
He wants to have everything his own way.
何て自分勝手なんだ。
How selfish.
規則さえ守るなら、何をしようと君の勝手だ。
I don't mind what you do as long as it's within the rules.
勝手にしろ!
It's your choice!
俺の目が黒いうちは、あの男に勝手なまねはさせない。
That man shall not have his own way as long as I live.
それは自分勝手だよ。
That's selfish.
それは君の勝手だよ。
That's up to you.
勝手に他人の所有地に入ってはいけない。
You must not trespass on someone else's property.