yǔ yán xué / kè shàng / lǎo shī / xiáng xì / jiǎng jiě le / yīng yǔ de / yuán yīn dà tuī yí

语言学课上，老师详细讲解了英语的元音大推移。

In the linguistics class, the teacher explained in detail the Great Vowel Shift in English.