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
Oh, that's too bad, Robbie.
啊 ，那太遗憾了， Robbie。
The police crept up from behind and took the gangster by surprise.
警察悄悄从背后绕过去，出其不意地将歹徒逮捕。
Many of the tourists on board had begun bargaining with the tradesmen, but I decide not to buy anything until I had disembarked.
船上许多游客开始同商贩讨价还价起来，但我打定主意上岸之前什么也不买。