Pre-op
abbr. preoperation 空转, 试运转; preoperational 试运转的
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
观测所\\n[计] 操作, 运算, 算符
🗣️ 情景例句
Oh,
噢，
Excuse me, how can I get to the bus station?
对不起，汽车站怎么走？
Let's go and take a look at it.
让我们去看看吧！