Pentaerythrite tertranitrate
[化] 季戊四醇四硝酸酯
🧩 词语组成解析
[化] 季戊四醇
🗣️ 情景例句
There's nothing wrong with hard work.
刻苦没错。
What college are you attending?
你在哪里上学？
By this time her legs were beginning to tremble,
这时她两腿累得开始发抖，