Cno
abbr. 美国海军作战部长（Chief of Naval Operations）
🗣️ 情景例句
Littering is a serious offense in some countries.
乱扔垃圾在某些国家是严重的违法。
We also hope to expand our business with you.
我们也希望与贵公司扩大贸易往来。
First of all, don't come in here without a teacher.
首先，没有老师领着不要进这儿。