FYI
历史(History)课(course)
体育馆(gym)
游泳(swimming)馆(place)
生物(bio)学(ology)
6666(Congratulations/you are really good at sth/you successfully achieve sth)
233333(I am so happy by your joke/ what you said is interesting)
say “女士” instead of “小姐” in Chinese
你(you are)真(so)豪(rich)