Cpo
abbr. 加拿大专利局（Canadian Patent Office）；价格建议大纲（Cost Proposal Outline）；军士长（Chief Petty Officer）
🗣️ 情景例句
Isn't this the Nanjing University?
请问是南京大学吗？
It is incredible that he should have gone to live in such a dangerous country.
他竟然搬到那样危险的国家去住，实在令人无法相信。
What was the date?
（昨天）是几月几日？