彼(かれ)とは学(がく)生(せい)時(じ)代(だい)から肝(かん)胆(たん)相(あい)照(て)らす仲(なか)だよ。 He and I have been inseparable friends since our student days. Words:彼(かれ)とは学(がく)生(せい)時(じ)代(だい)から肝(かん)胆(たん)相(あい)照(て)らす仲(なか)だよ