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
That's right, sweetheart.
是的，宝贝。
You play the piano beautifully.How much do you practice every day?
你完美地弹钢琴,你每天花多少时间练习？
I hope my visit does not cause you too much trouble.
我希望这次来参观没有给你们增添太多的麻烦。