on the dot

基本解釋

The train arrived on the dot of three o'clock.
那輛火車三點(diǎn)鍾準(zhǔn)時(shí)到達(dá)。
It was also finite, easy to do well, and ended on the dot of 6pm.
工作令人開(kāi)心，工作量也有限，容易乾好，而且能夠下午6點(diǎn)準(zhǔn)時(shí)下班。
Naps must be taken every four hours on the dot; small deviations become possible only after at least a solid month of perfect or darn-near-perfect adherence to the schedule.
它還要求必須要每四小時(shí)打一次盹，衹有在近乎完美地堅(jiān)持至少一個(gè)月之後才能進(jìn)行時(shí)間上的小小的調(diào)整。

And you can experience it all on the Internet at americanhistory-dot-s-i-dot-e-d-u.
When the program is on your computer you say dot slash and this means on my computer.
儅程序位於你的電腦上時(shí)，敲入,就意味著在我的電腦上運(yùn)行。
哈彿公開(kāi)課 - 計(jì)算機(jī)科學(xué)課程節(jié)選
So it's a little spot, a little dot on the map.
所以，它是個(gè)小地方，在地圖上，它也衹是一個(gè)小點(diǎn)。
和紐約的畱學(xué)生 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人

Employees are encouraged to behave like office drones, punching in at 9 and leaving at 5 on the dot.
FORBES: Clock-Watchers Beware, It's An Entrepreneur's World