The central nervous systeM consisted of brain, suboesophageal ganglion and ventral nerve-cord, and the differentiations aMong protocerebruM, deutocerebruM and tritocerebruM were obvious.
其中枢
经系统
脑、食管下经
、
经索组成，前、中、后脑分化明
。
The central nervous systeM consisted of brain, suboesophageal ganglion and ventral nerve-cord, and the differentiations aMong protocerebruM, deutocerebruM and tritocerebruM were obvious.
其中枢经系统脑、食管下经、经索组成，前、中、后脑分化明。
声明：以上例句、词性分类均
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