Orp
abbr. 氧化还原电位（Oxidation-Reduction Potential）；轨道会合程序（Orbital Rendezvous Procedure）
🗣️ 情景例句
Four will be good.
4只应该够。
I had to pay three dollars for my club fee.
我付了三美元给俱乐部
Marty
马蒂