Topics
abbr. 总联机程序和信息控制系统（Total On-line Program and Information Control System）
🗣️ 情景例句
It's nice seeing you.
非常高兴见到你。
Whom will you sell this to?
你将把这个卖给谁？
How long did it take you to accomplish this complicated job?
你花了多久才作完这复杂的活儿？