Ron
abbr. 研究法辛烷值（Research Octane Number）
✅ 同义词
🗣️ 情景例句
Good-bye, Dean Rafer.
再见， Rafer主任。
Idleness is the rust of the mind.
懒惰使脑子生锈。
He had spotted a tiny bottle at the bottom of my case and he pounced on it with delight.
他在我的箱底发现了一只小瓶，高兴地一把抓了起来。