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
It's good that you went back.
你回去是对的。
He who risks nothing, gains nothing.
不入虎穴，焉得虎子。
15 divided by3 equals 5.
15除以3等于5。