Operation system management
[计] 操作系统管理
🧩 词语组成解析
🗣️ 情景例句
I'm exhausted. I had to work until 2 o'clock this morning.
我累死了。我一直得干到今天早上2:00。
By writing you learn to write.
从写作中学写作。
Sure, just drop in my office some time and pick them up.
没问题，什么时候到我办公室来拿都可以。