| 例句 |
timekeepersnounpl. of timekeeper a device to measure timethe museum includes some ancient water clocks and sundials in its collection of historical timekeepers chronometers, clocks, timepieces, timers alarm clocks, atomic clocks, cuckoo clocks, grandfather clocks, time clocksclepsydras(or clepsydrae), hourglasses, sandglasses, sundials, water clockschronographs, stopwatches, watches |