计时的英文：
keep time
- A device,such as a clock or sundial,used in telling time.
计时仪用于计时的装置(如钟或日昝) - 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。 - emergent year
(民族、国家等)计时开始的年代 - We may keep time when reading articles.
我们应该在阅读时计时。 - Let's count down before start
开始前我们倒数计时。 - Tampering with the timing mechanism of the safe.
胡乱拨弄保险箱的计时装置 - In developing a design, one has to take account of many factors.
进行设计时，要考虑许多因素。 - Measure the time taken by(a runner,etc)or for(a race,process,etc)
(为跑者、赛跑、某过程等)计时 - All timing devices shall be independently adjustable.
所有计时装置应可单独调整。 - A contemporary classic. A timeless timepiece.
当代的经典产品。永久的计时装置。
v. 保持，处于；继续，重复；使耽搁；抚养；履行
n. 生活费，生活必需品
- That news will keep.
那个消息留待以后再宣布。 - They keep a shop.
他们经营一家商店。 - How are you keeping?
你最近还好吧？ - Will this food keep?
这食品能放得住吗？ - To keep high quality of products is to keep the everlasting value.
保持产品的高质量，就是保持永恒的价值。
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的
- discrimination time
辨别时间辨别时间 - It is time to go.
该走了。 - They are not in step with the times.
他们跟不上时代的步伐。 - This was for the time only.
这只是一时的权宜之计。 - What for this time?
这次又是为什么？