Pre-install
= preload
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜欢听音乐、弹钢琴，有时候去游泳。
That radio's pretty loud. Could you turn it down, please?
收音机太响了，你能把声音开小一点吗？
You should learn these words by heart.
你应该把这些词背熟。