词汇	tumble on
释义	tumble on vt.偶尔发现,偶尔见到
随便看	benzene tetracarboxylic acid benzene tetracarboxylic anhydride benzene tetrachloride benzene tetraiodide Benzene-The Prototypic Aromatic System benzene-thermal benzene thermal method benzene thermal synthesis method benzenethiol benzenethiosulfonic acid benzene thiosulfonic acid Benzene-toluene Benzene Toluene Xylene benzene,toluene,xylene benzene-toluene-xylene benzene toxicity benzene tricaboxylic acid benzene tricarbonic acid benzenetricarboxylic acid benzene tricarboxylic acid benzenetricarboxylic anhydride benzenetriol benzenetriozonide benzene triozonide benzene trisulfonic acid