in for a penny, in for a pound

谚语
/ɪn fəɹə ˈpɛ.ni ɪn fəɹə paʊnd/    /ɪn fɔɹ ə ˈpɛ.ni ɪn fɔɹ ə paʊnd/

英文释义

谚语
  1. Expressing that, having begun something (that involves significant risk or effort), one intends to see it to completion rather than stopping short. UK
    — Having tripped the bank's alarms, he simply uttered: "in for a penny, in for a pound", and continued on.

词源

Originally with reference to the fact that if one owed a penny, one might as well owe a pound (pound sterling, UK currency) as the penalties for non-payment were virtually identical in severity.
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