🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
n. 厚呢大衣
🗣️ 情景例句
The old couple has already been married for fifty years.
那对老夫妻结婚已经 50 年了。
I ought to write a letter.
我应该写一封信。
No, thanks. Help yourselves to the cakes.
不必，谢谢。请随便吃些糕点吧。