柯林斯英汉双解大词典
timekeeping /ˈtaɪmˌkiːpɪŋ/
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1.
N-UNCOUNT Timekeeping is the process or activity of timing an event or series of events. 计时工作
例：Who did the timekeeping?
谁做了计时工作？
双语例句原声例句权威例句
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Galileo designed a clock using a pendulum as the time keeping element in 1635.
1635年，伽利略设计了一种利用摇锤来计时的钟表。
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If kids have a hard time keeping up academically, they may need to drop an activity.
如果孩子在学业上要度过一个困难时期，他们需要放弃一些活动。
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Stores in Korea and Japan have a hard time keeping the hip hop clothing on the racks!
韩国和日本的商店里hip hop服装总是被抢购一空。
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They didn't violate any regulation at the time." But many Americans say they are outraged that executives were getting big bonuses while taxpayer dollars were keeping the firms alive.
VOA: standard.2010.07.23
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So it's very important to be keeping in mind that any time you see a double bond, you have a pi bond there, so you're not going to see any rotation around the bond axis.
所以你们要记住,任何时候你们看到一个双键，这里面有π键，你们不会看到关于键轴的任何转动。
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Isn't it difficult being a mother and a professor at the same time and keeping a balance between the two?
同时做母亲和教授是不是很困难呢？两者之间取得平衡不容易吧？
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