Diaminoditolyl
二甲基二氨基联苯
🗣️ 情景例句
We're also very glad to have practical business dealings with you.
我们也很高兴能和贵公司建立实质性的业务联系。
I think we can draw up a tentative plan now.
我认为现在可以先草拟一具临时方案。
Do you have any plans for the long weekend?
你有办法打发这个漫长的周末吗？