Noun:

1. the time taken to traverse a measured course;

   "it was a world record clocking"
   

clockn.时钟v.计时；打卡clock gate时钟脉冲门clocksmithn.制造或修理钟表者；钟表匠clock step时钟步进clock gage千分表clock tick时钟周期Clock bias钟差clock fuse钟表引信clock room钟房clock fork钟叉,钟擒纵叉clock skew时钟脉冲相位差,时滞

1. It's a quarter to4 o'clock.There are only5 minutes left to the end of the game.Our team, with a4 to0 lead, are simply running out the clock.
   现在是3：45分，离比赛结束只剩5分钟了，我们队以4比0领先，现在只是在打防守战。
2. I've set the clock for6:30 so that we can be up early to climb mountain before breakfast.
   我把表定在6：30闹响，这样我们可以早起在早饭前爬山。
3. The new censorship law will put the clock back (by) 50 years.
   新的审查条例是开倒车，要退回到50年前的水平。
4. He clocked 9.8 seconds for the 100 metres.
   他100米跑了9.