sym-trimethylbenzene三: three甲苯: methylbenzene; toluene2,4,6-三硝基-1,3,5-三甲苯: trinitro-mesitylene1,3,5-三甲基苯: mesitylene5-三甲苯: tribromomesitylene下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯