Cats sleep twice as much as people.
猫睡觉的时间比人长一倍。
我一周做两次瑜伽。
We go there maybe once or twice a month.
我们每月大概去那里一到两次。
We fly between Rome and Paris twice daily.
我们每天有两次航班穿梭于罗马和巴黎之间。
This room is twice the length of the kitchen.
这个房间的长度是厨房的两倍。
I don't know him well; I've only met him twice.
我跟他不熟悉，只见过两次面。
I never thought she'd win once, never mind twice!
我还以为她一次都赢不了，更别说两次了！
The aeroplane will travel at twice the speed of sound.
飞机将以两倍于音速的速度飞行。
Keaton comes here once or twice a year to soak up the atmosphere.
基顿每年来这里一两次，感受这里的氛围。
Once or twice she had caught a flash of interest in William's eyes.
有一两次，她捕捉到威廉眼中一闪的关注。
He's trying to learn English fast with evening classes twice a week.
他在努力通过一周上两次夜校来快速学习英语。
It would be an exaggeration to say I knew her well—I only met her twice.
说我非常了解她不免言过其实—我只见过她两次。
Doing it once was just about excusable — doing it twice was certainly not.
这种事干一次也许还可以原谅，干两次就绝对不能了。
People are spending twice as much on health tonics as they were five years ago.
人们花在保健补药上的钱是5年前的两倍。
我每天刷两次牙！
He feeds the bird twice a day.
他每天喂这鸟儿两次。
I water my flowers twice a day.
我一天给我的花浇两次水。
I go hiking about twice a month.
我大概每个月去两次远足。
我去过中国两次。
I wish the day were twice as long.
我希望白天能变长一倍。
做得好，事半功倍。
This mountain is twice as high as that one.
这座山是那座山的两倍高。
The new airplane flies twice the speed of sound.
这架新飞机的飞行速度是音速的两倍。
The new airplane flies at twice the speed of sound.
这架新式飞机以两倍于音速的速度飞行。
At least twice a month I go bowling with my friends.
我和朋友打保龄球每月至少两次。
She was unlucky enough to draw kitchen cleanup twice in one week.
她够倒霉的，在一周内两次抽签得下厨打扫。
Twice she put out her hand to take the garment again, and twice she refrained.
她两次伸手去拿那件衣服，两次又把手缩了回去。
There were forty camels in the caravan, and the mules were twice forty in number.
商队有四十匹骆驼，骡子的数量则是骆驼的两倍。
The plane circled twice, trying in vain to line up with the runway.
飞机盘旋了两圈，试图对准跑道降落却没成功。
十是五的两倍。
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