门票: ticket (for theater, cinema etc)...
吨: ton (loanword)...
委员: committee member...
中小学: middle and elementary school...
交集: intersection (symbol ∩) (set theory)...
兴高采烈: happy and excited (idiom), in high spirits, in great delight...
模型: model, mold, matrix, pattern...
学时: class hour, period...
各位: everybody, all (guests, colleagues etc), all of you...
