Nonclassical carbocation
[化] 非经典碳正离子
🧩 词语组成解析
非经典的
碳阳离子
🗣️ 情景例句
Advice doesn't normally come cheap, but this piece is for free...
通常来说，忠告都是价值不菲的，但这个是免费赠送的。。。
What is the sort of furture?
这是什么风格的家具？
Sally was amused, but I was very embarrassed!
萨莉感到很有趣，而我却很尴尬。