Ron
abbr. 研究法辛烷值（Research Octane Number）
✅ 同义词
🗣️ 情景例句
He makes a good living growing tomatoes.
他靠种蕃茄日子过得挺不错的。
Comparisons are odious.
人比人，气死人。
A few minutes later, I was able to hurry away with precious chalk marks on my baggage.
几分钟后，我终于被放行，手提划着宝贵的粉笔记号的行李，匆匆离去。