Operational research
出国 Abroad[经] 运筹学
🧩 词语组成解析
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
Off-season clothes are usually sold at very attractive prices.
换季衣服的售价通常挺吸引人。
Work bears witness who does well.
工作能证明谁人做得好。
Two great towers support four huge cables.
两座巨塔支撑着4根粗大的钢缆。