Orp
abbr. 氧化还原电位（Oxidation-Reduction Potential）；轨道会合程序（Orbital Rendezvous Procedure）
🗣️ 情景例句
Oh, my pleasure.
噢！不客气。
In all things, it is better to hope than to despair.
凡事抱希望为佳，不应悲观而失望。
and at the most critical juncture we took turns in watching that point.
在最紧急的时刻，我们轮流监视那段河流的险情。