Lǎoshī / ràng / wǒmen / liànxí / cóng / yí / gè / yuányīn / huá / xiàng / lìng / yí / gè / yuányīn / zhǔnquè / fāchū / èrchóngmǔyīn

老师让我们练习从一个元音滑向另一个元音，准确发出二重母音。

The teacher asked us to practice gliding from one vowel to another and produce the diphthong accurately.