基本解释n.壳孢子同根派生 英汉例句It is speculated that meiosis occurs during the time period from these formation of the conchospore to the first cell division of it. 并对减数分裂这一遗传现象进行了重新认识，提出紫菜减数分裂可能发生在壳孢子形成至壳孢子萌发的第一次细胞分裂时期。