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？