Hydrofining
加氢精制, 氢化提纯
🗣️ 情景例句
Nonsense! How can you say that and keep a straight face?
胡说八道！你怎么能不动声色说那些话呢？
Thank you for directions.
感谢你为我指路。
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理，潜水员常常要在水面100英尺以下摸黑工作，