adv.两遍,两次;两倍;
例句:
I phoned twice a day, leaving messages with his wife...
我每天打两次电话,托他妻子捎口信。
At 56 he's twice her age.
他56岁,年龄比她大一倍。
a twice-monthly/yearly newsletter
半月 / 半年刊的简讯