单词	dutyproof
释义	同Duty-proof
随便看	compound sound source compound source molecular beam epitaxy compound specific activity compound spherulite compound spherulites compound spike compound spring compound stalactite compound starch grain compound state compound--state compound state, intermediate state compound state; intermediate state compound statement compound steam engine compound steam turbine compound steps compoundstill compound stranding compound stratification compound stream compound stress compound strobilus compound style compound subject heading