invertebrate having a soft unsegmented body usually enclosed in a shell
造句
用作名詞(n.)
DrKnoll reckons this is because molluscs andarthropods are able to bufferthe chemistry of the internal fluids from whichthey create theirshells. 努爾博士猜想這是因為軟體動物類和節肢動物類生物能夠減緩它們所造外殼內部流動的化學反應。