单词	opercular sac
释义	opercular sac 鳃囊
随便看	working in earnest working injury working innovation working in on a line working in or on the line working input working in shifts working instruction working instructions working intensity working interest working interface working interstitial proportion working interval Working in the cities working in the countryside working in the fields Working in the fields wore me out working in the metropolis working in the vicinity of live part working machine working-machine Working Machine Design of Shell-breaker working into working inventory