Immunol
abbr. immunologic(al)(ly) 免疫（學）的（地）; immunologist 免疫學者; immunology 免疫學
??? 情景例句
Go for it.
去試試吧。
Falling leaves
落葉
It's about the universe. The speaker's supposed to be excellent.
是關于宇宙的。演講人應該是一流的吧。