单词	反去歸
释义	同BACK
随便看	preoperational preoperational amplifier pre-operational period pre-operational stage preoperational stage preoperational stage (或 period) pre-operational test boiler preoperational testing preoperative preoperative cast preoperatively preoperative nutrition preopercular preopercular (praeopercular) preopercular-- praeopercular preopercular--praeopercular preopercular; praeopercular preopercule preopercule; preoperculum preoperculum preoperculum--preopercule preopinion preoptic preoptic nerve preoptic recess