基本解释胚轨英汉例句权威例句The germ cells were tagged with a fluorescent chemical that allowed the scientists to isolate and track the germ cells as the body developed.NPR: Making Sperm, No Men Necessarygerm track更多例句词组短语短语germ -track 翻译;胚迹germ track更多词组专业释义生物学胚轨种系