Physical security
[计] 物理安全性
🧩 词语组成解析
🗣️ 情景例句
She is sleeping here so she won't have to travel from Riverdale in the morning.
她晚上住在这儿，免得早上从Riverdale赶过来。
One father is more than a hundred school-masters.
一个父亲胜于一百个教师。
We're ready to take your order now.
你们现在可以下订单了。