push against an open door

动词 v.

英文释义

动词 v.
  1. To do something pointless or unnecessary; to try doing something already done. idiomatic

词形变化

pushes against an open door present,singular,third-person pushing against an open door participle,present pushed against an open door participle,past pushed against an open door past push an open door alternative push against open doors alternative
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