yǒu / kǒng / chóng / shēng / huó / zài / hǎi / yáng / zhōng / huà / shí / jì / lù / duì / yán / jiū / gǔ / dài / huán / jìng / hěn / yǒu / bāng / zhù

有孔虫生活在海洋中，化石记录对研究古代环境很有帮助。

Foraminifera live in the ocean, and their fossil record is very useful for studying ancient environments.