Mainframes
n. （大型电脑的）主机, 中央处理机（mainframe的复数形式）
🗣️ 情景例句
Certainly sir, and is there anything else I can do for you?
当然了，先生，请问还有什么我能为你效劳呢？
I asked him to buy it for me, but he wouldn't.
我请他帮我买，但是他不肯。
But I was extremely pleased with myself.
但我却非常高兴，