Here's a list of words and phrases used in the show:
1) 高考 Gāokǎo: national college entrance exam
2) 英语 Yīngyǔ: English
3) 退出 Tuìchū: exit, quit
4) 四级 Sì jí: level 4 in China's College English Test
5) 六级 Liù jí: level 6 in China's College English Test
6) 毕业证书 Bìyè zhèngshū: university degree
7) 音标 Yīnbiāo: IPA (The Internatioanl Phonetic Alphabet)
8) 不公平 Bù gōngpíng: unfair
9) 听力 Tīnglì: listening
10) 语法 Yǔfǎ: grammar
11) 改革 Gǎigé: reform