Dmf
[化] 二甲基甲酰胺
🗣️ 情景例句
Why should you be sorry?
你何必说对不起呢？
I want to purchase some computers from your company.
我想从贵公司购买一些电脑。
We had lost the path and had no hope of finding it again.
我们找不到那条小路，而且也没有希望再找到它了。