Pre-flight
a. 飞行前的
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
The apartment is spacious, bright and clean.
这个公寓宽敞、明亮、干净。
What are you talking about?
你在说些什么？
Instead of becoming a doctor, however, he became a successful writer of detective stories.
然而，他后来没当上医生，却成了一位成功的侦探小说作家。