Hydrofining
加氢精制, 氢化提纯
🗣️ 情景例句
I don't know how to drive I'm afraid.
恐怕我不懂得怎样开车。
Some students quit school due to poverty.
一些学生因贫困而辍学。
Mrs Flower's house has now been sold.
弗劳尔夫人的房子现已售出。