Op-
(=ob-)[用于p之前], 如oppose
🧩 词语组成解析
观测所\\n[计] 操作, 运算, 算符
🗣️ 情景例句
What happened?
怎么啦？
I'll finish working at 5:30 and get home by 6 o'clock.
我希望在5:30完成工作并且在6点钟回家。
But for the English examination, I would have gone to the concert last Sunday.
上个星期天，要不是有英语考试， 我就去听音乐会了。