value; (to be) worth; to happen to; to be on duty

valuable; costly; expensive

to work a shift; on duty

variant of 執勤|执勤[zhi2 qin2]

image (or range) of a function (math.)

on night duty

(of a security guard etc) to be on duty, keeping an eye on things; to keep watch

on night duty

(coll.) worth it; worthwhile

on day duty

(of army officers) to be on duty for the week

to check in (for a flight)

on this (occasion); at this time when ...; on this occasion

to meet with; to bump into

student on duty; prefect

to be worth mentioning