twice
英/twaɪs/
美/twaɪs/
adv.两次;两倍;两遍
例句
New drivers have twice as many accidents as experienced drivers.
新驾驶员所出的事故是老驾驶员的两倍。
I don't know her well, I've only met her once or twice.
我跟她不很熟；我只见过她一两次。
In summer we have to mow the lawn twice a week.
夏天我们每周得修剪草坪两次。
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