Pre-conferences
(pre-conference 的复数) n. 预备会议
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
n. 会议（conference的复数形式）
🗣️ 情景例句
I have always worn a clip-on bow tie.
我都是用夹上去的领结。
You were late again this morning. I think you had better start being on time.
你早晨又迟到了，我想你最好开始守时。[托福]
Speculations about is nature have been going on for literally thousands of years,
人们对睡眠作用的种种猜测，确实有数千年之久。