at twice中文什么意思

分两次, 在第二次时

• twice:    adv. 两次；两倍。 It is ...
• in twice:    分两次
• but twice as big and twice as far:    虽然遥远而且巨大

例句与用法

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1. " at first sight he was not the kind of a man a woman would look at twice .
   乍一看，他并不是那种令女性眷恋不舍的男子。
2. Purkinje fibers are driven ("over driven") by the sinus node at twice their intrinsic rate .
   浦氏纤维是被较其本身频率约高一倍的窦房结所驱动（“超速驱动”）。
3. Bills travel through the mail at twice the speed of checks
   帐单总是比支票寄来的速度快。
4. Research on bending capacity of cfrp reinforced concrete structure at twice loading
   铁路悬索桥自振特性及结构参数的研究
5. Water use has grown at twice the rate of population during the past century
   在上一个世纪里，用水量的增长率是人口的增长率两倍。