Definition (測量)
To accurately indicate the correct time, as a clock or watch does.
（鐘錶）走時準確
It's amazing that this old pocket watch still keeps time so accurately.
令人驚訝的是，這只舊懷錶仍然如此準確地保持時間。
I need a reliable watch that keeps time precisely.
我需要一只可靠的手錶，它能精確地保持時間。
Despite its age, the clock still keeps time correctly.
儘管年代久遠，這座鐘仍然能正確地保持時間。