shuǐmǔtǐ / shì / shuǐmǔ / shēngmìngzhōuqī / zhōng / de / yīgè / jiēduàn / xíngrú / sǎnzhuàng水母体是水母生命周期中的一个阶段,形如伞状。The medusa is a stage in the jellyfish life cycle, shaped like an umbrella.