Pre-install
= preload
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
Do you have any plans after class today?
今天下课后你有什么安排吗？
That was clever the way you worked out your problem.
那是解决你的问题的好办法。
The doctor began to operate on the boy.
医生开始给那个男孩动手术。