短语词组短语larval phase 幼虫期larval moult 幼虫蜕皮larval adaptation 幼虫适应Larval Mesoderm 幼虫中层;幼体中胚层larval period 幼虫期larval fish 稚鱼;小丑鱼的稚鱼larval segment 幼虫体节larval survival 幼虫存活数larval metamorphosis 幼体变态 返回 larval