on the clock意思是：在時鐘上。
例句：
1、The luminous dial on the clock showed five minutes to seven.
夜光鐘面顯示時間為6點55分。
2、The car had 160,000 miles on the clock.
里程錶顯示此車已行駛了16萬英里.
3、We got one minute left on the clock to finish this game.
比賽就要結束，我們只有一分鐘了。
4、Study on the Clock Synchronization Based on FPGA in Power System.
基於FPGA的電力系統時鐘同步技術實現
5、Keep an eye on the clock and allot appropriate time to each section.
保持對時鐘分配適當的時候眼睛每個部分。
6、What time does it say on the clock in the square?
看看廣場上的鐘幾點了？
7、Research on the Clock Jitter Effects on the Performance of GPS Tracking.
取樣時鐘抖動對GPS訊號跟蹤效能影響研究
8、That"s the time now on the clock.
這就是現在表上的時間。
9、There are twelve big numbers on the clock.
鐘面上有十二個大的數字。
10、Nine fifty-two on the clock above the refrigerator.
冰箱上的鐘已指到九點五十二分。
on the clock意思是：在時鐘上。
例句：
1、The luminous dial on the clock showed five minutes to seven.
夜光鐘面顯示時間為6點55分。
2、The car had 160,000 miles on the clock.
里程錶顯示此車已行駛了16萬英里.
3、We got one minute left on the clock to finish this game.
比賽就要結束，我們只有一分鐘了。
4、Study on the Clock Synchronization Based on FPGA in Power System.
基於FPGA的電力系統時鐘同步技術實現
5、Keep an eye on the clock and allot appropriate time to each section.
保持對時鐘分配適當的時候眼睛每個部分。
6、What time does it say on the clock in the square?
看看廣場上的鐘幾點了？
7、Research on the Clock Jitter Effects on the Performance of GPS Tracking.
取樣時鐘抖動對GPS訊號跟蹤效能影響研究
8、That"s the time now on the clock.
這就是現在表上的時間。
9、There are twelve big numbers on the clock.
鐘面上有十二個大的數字。
10、Nine fifty-two on the clock above the refrigerator.
冰箱上的鐘已指到九點五十二分。