常見(jiàn)例句用作名詞 (n.)In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.在海蜇成躰或水母躰堦段，它們通過(guò)將精子和卵於釋放到水中形成浮浪幼躰而進(jìn)行有性繁殖。 返回 planula