Minor league
01
マイナーリーグ, 育成リーグ
a level of professional sports competition below the highest level, typically where younger or less experienced players develop their skills
例
He played in the minor leagues for three seasons before getting called up to the majors.
彼はメジャーリーグに召喚される前に3シーズン間マイナーリーグでプレーした。
