Peroxy-nirtrate
[化] 过硝酸盐
🗣️ 情景例句
He began to seek jobs in the classified advertisement column in the newspaper.
他开始从报纸的分类广告栏找工作。
Excuse me I couldn't write you sooner.
对不起我不能尽快给你写信。
with their fellow scientists either in other countries or in universities,
和其他国家、其他大学同行们