twice

副词 adv.

英文释义

副词 adv.
  1. Two times. not-comparable
    — You should brush your teeth twice a day.
  2. Doubled in quantity, intensity, or degree. not-comparable,usually
    — Thus it appears that if the machine is turning twice as slow as before, there is more than twice the former quantity in the rising buckets; and more will be raised in a minute by the same expenditure of power.

词源

From earlier twise, from Middle English twies, twiȝes, from Old English twīġes (“twice”), from twīwa, twīġa ("twice"; whence Middle English twie (“twice”)) + -es (adverbial genitive ending). Related to Saterland Frisian twäie (“twice”), Middle Low German twiges, twies (“twice”), Middle High German zwies (“twice”). Equivalent to twi- (“(in) two; both”) + -ce. Similarly constructed to the prefixes bis- and dis-, borrowed from Indo-European cognates.
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