Security policy
[计] 安全策略
🧩 词语组成解析
🗣️ 情景例句
Uh-hum.
嗯哼。
I am Chen Jianguo. I am from Shanghai, China.
我叫陈建国，来自中国上海。
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。