Dinitroaniline
二硝基苯胺
🗣️ 情景例句
I think it's about time we got going.
我想差不多是告辞的时候了。
They are still lower than the quotations you can get elsewhere.
这些报价比其他任何地方都要低得多。
The geologist needs to know what rocks the drill has reached,
地质学家需要知道钻头已经到达什么样的岩层，