supererogatory

英 [,sjuːprə'rɒɡətɔːrɪ]美

adj. 额外的，多余的；职责以外的

英文词源

supererogatory (adj.)

1590s, from Medieval Latin supererogatorius, from supererogat-, stem of supererogare "pay or do additionally" (see supererogation).

双语例句

1. It was supererogatory for her to gloat ( Mary McCarthy )

她也在一旁幸灾乐祸地看得出神,真是多余 ( 玛丽麦卡锡 )

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2. It was supererogatory of her to gloat.

她没必要幸灾乐祸.

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