横神经通往同体节的气门.The transverse nerves pass to the spiracles of their segment.腹面昆虫的腹部体节.The abdominal segment of an insect.脊椎动物的脊柱来源于体节,体节是胚胎发生过程中的过渡性结构.The vertebral column is derived from somites, which are mesoderm that ar...
On the floor of the basins lie deserts, lakes and swamps.这几个盆地的底部有沙漠 、 湖泊和沼泽.Too much rain is the problem of the equatorial lands in the Amazon and Congo basins.雨水过多是亚马逊河与刚果河流域赤道地区的大问题." Other shops have wash - cloths an...