Knf
abbr. Key Notarization Facility 重要公证设备
🗣️ 情景例句
Good afternoon. What's the trouble?
下午好。有什么不舒服吗？
Last year I studied sociology and political science in school.
去年，我在学校攻读了社会学和政治学课程。
Didn't you have a crash?
难说您没有出车祸吗？