Operational maintenance
[计] 运行维护
🧩 词语组成解析
🗣️ 情景例句
Wedding-day Jitters.
这叫婚礼紧张症。
Put the receiver closer to your mouth.I can't hear you.
把听筒放近你的嘴，我不能听见你的话。
Luckily the weather was not so wet as it is today.
幸运的是，那天的天气不像今天这样有雨。