yán / jiū / rén / yuán / zài / shuǐ / yàng / zhōng / fā / xiàn / le / jǐ / zhǒng / biān / máo / gāng / shēng / wù研究人员在水样中发现了几种鞭毛纲生物。Researchers found several flagellate organisms in the water sample.