（表或钟）准时
(of a watch or clock) to show the correct time
Does your watch keep good time? 你的表准吗？
We sell a range of antique watches, some of which still keep time.
That grandfather clock has kept time in our family's living room for over 100 years.
It used to be that you'd have to regularly wind a wristwatch in order for it to keep time.
See also: keep verb (CONTINUE TO HAVE)