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- adv. 两次；两倍
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1. kiss twice
亲吻两次
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2. She does for us twice a week.
她每周两次来帮我们做家务。
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3. I mop the kitchen floor twice a week.
我一星期两次用拖把拖厨房的地板。
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4. I don't know him well; I've only met him twice.
我跟他不熟悉，只见过两次面。
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5. a twice-monthly newsletter,a twice-yearly newsletter
半月╱半年刊的简讯
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6. an area twice the size of Wales
两倍于威尔士大小的地区
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7. Cats sleep twice as much as people.
猫睡觉的时间比人长一倍。
- twice (adv.) late Old English twies, from Old English twiga, twigea "two times," from Proto-Germanic *twiyes (source also of Old Frisian twia, Old Saxon tuuio), from PIE *dwis-, adverbial form of root *dwo- "two." Spelling with -ce reflects the voiceless pronunciation.
twice ★ / twaɪs ; NAmE twaɪs / adverb 1 ★ two times; on two occasions 两次；两遍 ◆ I don't know him well; I've only met him twice. 我跟他不熟悉，只见过两次面。 ◆ They go there twice a week/month/year. 他们每星期╱每月╱每年去那里两次。 ◆ a twice-monthly/yearlynewsletter 半月╱半年刊的简讯 2 ★ double in quantity, rate, etc. 两倍 ◆ an area twice the size of Wales 两倍于威尔士大小的地区 ◆ Cats sleep twice as much as people. 猫睡觉的时间比人长一倍。 ◆ At 56 he's twice her age. 他 56 岁，年龄比她大一倍。 IDIOM twice ˈover not just once but twice 不止一次，而是两次 ◆ There was enough of the drug in her stomach to kill her twice over. 她胃中的药物足够毒死她两次的。 ☞more at lightning n. , once adv. , think v. twice / twaɪs ; NAmE twaɪs /
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