Nitro derivatives
[机] 硝基衍生物
🧩 词语组成解析
n. 硝基
派生物
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
It doesn't matter to me.
这对我来说无所谓。
At lunchtime, the tourist thanked him and gave him ten pounds, which was a lot of money in those days.
午餐时，这位游客向他表示感谢，并给了他10英镑。这在当时可算是一大笔钱了。