Formylation
[化] 达夫反应; 达夫反应甲酰化作用
🗣️ 情景例句
Happy Mother's day!
母亲节快乐。
Out, rat!
滚出去，老鼠！
that the traveller abroad thereby denies himself the opportunity of getting to know the people of the country visited.
说这种封闭的作法使到国外旅游者失去了了解所去国家人民的机会。