词典释义：
释义
n.
a person who measures or records the amount of time taken, especially in a sports competition
（尤指体育比赛中的）计时员。
[usu. with adj.]a person regarded as being punctual or not punctual
（不）守时者
-
we were good timekeepers .我们很守时。
a watch or clock regarded as recording time accurately or inaccurately
计时器
-
these watches are accurate timekeepers. 这些表是精准的计时器。
archaic a clock
〈古〉 钟。