🧩 词语组成解析
a. 氮的, 含氮的, 硝石的
🗣️ 情景例句
First, we need to more public relations activities to promote understanding.
首先，我们应该更多地做公关活动以促进了解。
Mrs.Smith, I'd like to introduce a friend of mine, Pierre Dubois.
史密斯太太，我来介绍一下我的朋友皮埃尔=杜布斯。
Convinced of the importance of education,
深深懂得教育的重要性，