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
No such thing as too many at an opening.
展览开幕怎么会嫌人太多呢。
They jumped at the unexpected noise.
他们因突如其来的声音吓得跳了起来。
I think I'd like to just look around.
哦，我只是看看而已。