哺乳动物

鲸鱼是哺乳动物。

jīng yú shì bǔ rǔ dòng wù.

Whales are mammals.

大熊猫作为中国特有的珍稀野生哺乳动物，凭借憨态可掬的形象成为享誉全球的国宝。

dà xióng māo zuò wéi zhōng guó tè yǒu de zhēn xī yě shēng bǔ rǔ dòng wù, píng jiè hān tài kě jū de xíng xiàng chéng wéi xiǎng yù quán qiú de guó bǎo.

As a rare wild mammal unique to China, the giant panda has become a world-renowned national treasure with its innocent and cute image.

生物医药科研人员借助先进的基因显微注射技术，深入研究哺乳动物早期胚胎的发育机制。

shēng wù yī yào kē yán rén yuán jiè zhù xiān jìn de jī yīn xiǎn wēi zhù shè jì shù, shēn rù yán jiū bǔ rǔ dòng wù zǎo qī pēi tāi de fā yù jī zhì.

Biomedical researchers use advanced gene microinjection technology to conduct in-depth studies of the developmental mechanisms of early mammalian embryos.