Dicophan
[醫] 滴滴涕
??? 情景例句
That's a very interesting question.
這是個非常有趣的問題。
The fire is the test of gold; adversity of strong man.
烈火試真金，困苦練壯士。
where chance discoveries play a much larger part than they do in physical and mechancal industries.
同物理和機械工業相比，化學工業中偶然發現的機會要多得多。