Security constraint
[计] 安全性约束
🧩 词语组成解析
🗣️ 情景例句
When did the Roman Empire come into being?
罗马帝国是什么时候形成的？
Keep thing seven years and you will find a use for it.
备而不用。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。