After military service he played some minor league baseball.

退伍后，他参加了一些职业棒球次级联盟的比赛。

《柯林斯英汉双解大词典》

He remembered back to a younger, happy, healthy life, when he exercised daily and even played minor league baseball for the Detroit Tigers.

他回想起年轻时那快乐，健康的生活，那时他每天都要锻炼，甚至效力于底特律老虎队参加小联盟棒球赛。

youdao

But you also recall that when he played in Minor League baseball, he wasn't viewed as a leader even in his own Minor League team.

大家也还记得当他，效力于棒球小联盟时，他甚至都不被认为是队中的领导者。

youdao

Well, Phil's a minor league baseball player, and he travels a lot, and my mom stayed home with me,but I knew it made her unhappy, so I figured I'd stay with my dad for a while.

VOA: standard.other

The lawsuit claims that MiLB and the PBUC hold an illegal monopoly on the placement of professional umpires in both Minor League Baseball and in Major League Baseball.

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In August 2012, the Jim Evans Academy of Professional Umpiring filed a lawsuit against the National Association of Professional Baseball Leagues, publicly known as Minor League Baseball (MiLB) and the Professional Baseball Umpire Corporation (PBUC).

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Is it the excitement of being in an environment oozing with baseball industry professionals from the lowest levels of minor league baseball to the world champions?

FORBES: Marlins' Dalliance With Albert Pujols Gets Serious