Dithiourethane
[化] 二硫代氨基甲酸乙酯
🗣️ 情景例句
Bye, Marilyn.
再见， Marilyn。
Now, ladies and gentlemen, I'd be happy to answer any questions that you might have.
各位女士各位先生，现在你们有任何问题我都乐意答复。
An enterprise has to incur certain costs and expenses in order to stay in business.
一个企业为了继续经营，不得不支出一定的费用和开销。