I am a Japanese and Mandarin Chinese student at my high school, but for the life of me I can't remember how to say that I'm in 10th grade in either language. I think it would be ここ九年生 in Japanese, but I'm just not sure. As for Mandarin Chinese, I honestly have no clue. I don't believe that we went over that this year.
So I am making the cover page for my school binder and need to know how to say "10th grade" or "Second year high school student," in Japanese and Mandarin Chinese.
Thank you!