Pernitric acid
[化] 过硝酸
🧩 词语组成解析
🗣️ 情景例句
What's inside?
这里面是什么？
Life is half spent before we know what it is.
等到认识人生，已经一半过去了。
“I wish I'd known about that rule earlier, she said.
“我要是早点知道这个规矩就好了！”她说。