Physical security
[计] 物理安全性
🧩 词语组成解析
🗣️ 情景例句
Will you be so kind as to help me out of the difficulty?
帮助我克服困难，好吗？
May I borrow your book?
我能借你的书吗？
Dad, this box is too heavy. We can't carry it.
爸爸，这个箱子太重了，我搬不动。