I heard if you wait six seconds, your anger will go away.
If a person can contain their anger for six seconds, it will usually subside.
ーI heard if you wait six seconds, your anger will go away.
「もし６秒待てば怒りが収まるらしいよ」
to wait six seconds で「６秒待つ」
anger で「怒り」
to go away で「消えうせる」
ーIf a person can contain their anger for six seconds, it will usually subside.
「もし６秒間怒りを我慢できたら、大抵（怒りは）静まるだろう」
to contain で「我慢する・抑える」
to subside で「静まる・和らぐ」
ご参考まで！
カナダ 
