Diguanide
[化] 缩二胍
🗣️ 情景例句
I can't drop the price any further, the owner doesn't allow it.
我不能再进一步砍价了，卖主不肯让步。
It won't take much time.
不会花很多时间的。
What happened before printing was invented?
印刷术发明以前是怎么一回事？