Ketonization
酮基化作用
🗣️ 情景例句
What about the rings?
戒指怎么办？
What is learnt in the cradle lasts (or is carried) to the grave.
小时学会的事情到老不会忘记。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止，公众已经向新闻界写信表达他们对学生们的感激之情了。