The members of the same class, independently of their habits of life, resemble each other in the general plan of their organization.

 
  • 同綱內的生物不管其生活習性如何,在結構的一般形式上是彼此相類(lèi)似的。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan