Phenylenediamine
苯二胺
🗣️ 情景例句
That child behaves just as he pleases.
那孩子想干什么就干什么。
This professor has put all of his students to sleep except two.
这位教授使得除了两人以外的所有学生都入睡了。
'Excuse my interrupting you.
“请原谅我打断了您。