In those days, dentistry was basic. Extractions were carried out without anaesthetic.那时候，牙科学刚起步，拔牙都不打麻药。Her teeth are so bad that she needs three extractions.她牙齿坏得非常厉害,得拔掉三颗.Her teeth are so bad that she needs five extra...

n.取出( extraction的名词复数 )，摘要，血统，拔牙...

Objective: The extractions on the carotenoid produced from Cordyceps militaries were studied.目的: 研究蛹虫草中类胡萝卜素的提取工艺.The extractions of glutenin and gliadin from vital wheat gluten were investigated.以谷朊粉为原料,提取了麦谷蛋白和麦醇溶蛋白.In...

extractions的音标：...