英语词汇“primitive knot”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	primitive knot
释义	primitive knot noun : a knob of cells at the anterior end of the primitive streak that is the point of origin of the embryonic head process — see end bud 2
随便看	rice shell rice stalk borer rice stinkbug rice tenrec rice water rice-water stool rice water weevil rice weevil ricey rich rich richard richardia richard miles richard roe richard's richardsonia richardsonian richardson's richardson's grouse richardson's jaeger richardson's owl richards's richards's indicator richard's weed

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