单词	additive inverse
释义	additive inverse noun : a number that when added to a given number gives zero the additive inverse of 4 is −4 compare opposite sense 3 Word History First Known Use 1953, in the meaning defined above
随便看	lightening hole lightening up lightenings lightens lightens up lighter lighter fluid lighter-out lighter-than-air lighterage lighterage limits lighterages lightered lightering lighterman lightermen lighters lightest lightface lightfaced lightfacer lightfaces lightfacest lightfast lightfastness

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