Cfr research test method
[化] CFR研究试验法(测定汽油辛烷值)
🧩 词语组成解析
abbr. 运费在内条件（Cost and Freight）；未来研究中心（Center for Future Research）
research
['risɝtʃ]
n. 研究，追究;探讨，探测;调查;探索;
vi. 做研究;探究;（从市场调研中）得出所预测的结果;
vt. 从事…的研究，为…而做研究;
re(again)+search(to go round)→研究；调查
🗣️ 情景例句
Don't laugh. In the beginner's class,they give you a chance to rest between exercises.
别笑。在初级课程中你有机会休息。
There's many a slip between the cup and the lip.
天有不测风云。
Jim looks at Li Lei's apples. Oh! he says.
吉姆看看李垒的苹果。“噢！”他说