Security maintenance
[计] 安全维护
🧩 词语组成解析
🗣️ 情景例句
to have a family and grandchildren.
拥有一个家庭和孙子们。
May I ask you where you are from?
我能问你从哪里来吗？
This time they fixed heavy metal clamps to both sides of the dish so that they could fasten the chains.
这次，他们用沉重的金属夹子把盘子夹住，以便往盘子上安装铁链。