Pre-opg
[经] 开盘前
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
[医] 氧基聚明胶
🗣️ 情景例句
And we'll also need some ladders
而且我们还需要一些梯子
She will be happy to speak in French or Chinese to any of you.
她会很高兴与你们中的某个人讲法语或中文。
He has asked to be introduced to the pianist.
他要求会见这位钢琴家。