第四年第一百九十一天

[nnozomi]

部首
又 part 4
受, to receive; 变, to change; 叛, to betray 受 shòu, to receive; 变 biàn, to change; 叛 pàn, to betray
https://www.mdbg.net/chinese/dictionary?cdqrad=29

词汇
系, [university] department; 关系, relationship; 联系, contact 系 xì, [university] department; 关系 guānxì, relationship; 联系 liánxì, contact
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
我们一直都是朋友，从来没变过, we've always been friends, that has never changed
本校生物工程系的一名老师, a teacher in the bioengineering department at this university

Me:
他就算受了伤也没叛逆了我们。
在你的系有没有毕业论文？