Certainly not
不, 当然不行
🧩 词语组成解析
not
[nɑt]
adv. 不;[用以表示否定、否认、拒绝、禁止等]不是;几乎不;未必，没有[用于否定后面的词或短语];
🗣️ 情景例句
What was that about?
说些什么？
It's essential to choose the right means of transportation.
选择合适的运输方式很重要。
I was proud that we had come across something that was completely unknown and valuable and,
让我感到自豪的是，我们在无意中发现了不为世人所知的、有价值的东西，