常見例句雙語(yǔ)例句An internal body cavity of some primitive invertebrates, similar to a coelom but lacking a mesodermal lining.某些原始無(wú)脊椎動(dòng)物躰內(nèi)腔室,與躰腔相似,但是沒有中胚膜。odict.net 返回 primitive body cavity