Perhydrophenanthrene
菲烷, 全氢化菲
🗣️ 情景例句
I'm in charge of the sales department.
我主管销售部。
Put (or Lay or Set) one's shoulder to the wheel.
出一把力。
I think the blue dress is prettier.
我认为那件蓝色的更漂亮些。