Security management
[计] 安全管理
🧩 词语组成解析
🗣️ 情景例句
Yes. I have an upset stomach.
是的，我的胃很难受。
Why?
为什么？
He believed that everyone should be prepared to do heavy work, from the leaders to the poorest peasants.
他认为从领袖到最穷苦的农民，每个人都该乐于从事重体力劳动。