Mainframes
n. （大型电脑的）主机, 中央处理机（mainframe的复数形式）
🗣️ 情景例句
It's time I was off.
我该走了。
John has extracurricular activities. He's on the football team.
约翰有课外活动。 他参加了足球队。
This is No. 1 Machine Shop. Keep together, please! said Uncle Wang.
“这就是第一机械车间。 请大家靠拢点！”王大叔说。