其れ

それは確かに一案です。

That's certainly one possibility.

嫉妬が彼(かれ)にそれをさせた。

Jealousy made him do that.

それは君(きみ)の腕(うで)次第かな。期待してるよ。

I suppose that depends on how good you are. I'm counting on you!

それが高1の時(とき)だから17年(ねん)が経ちました。

That was when I was in the first year at high school, so 17 years have passed since then.

ＯＫ！！ブラザー！！それ以上聞きたくないぜ！

OK!! Bro!! I don't want to hear any more!