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
I really appreciate you coming over to help me with my math.
我真的很感谢你过来帮我补习数学。
You can't miss it.
你不能错过它。
These objects, however, were different.
这些展品却使人大开眼界。