hǎi yáng / shēng wù / kè / shàng / lǎo shī / zhǎn shì / le / zuò shēng shuǐ mǔ / de / biāo běn

海洋生物课上，老师展示了座生水母的标本。

In the marine biology class, the teacher showed a specimen of a sessile medusa.