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
We're promoting you to a senior position effective immediately.
我们将马上给你升职。
No. I have been away on vacation.
是呀，我休假去了。
There was an argument about money, so it seemed, in a language that Kunta did not understand.
看来他们在用孔塔听不懂的语言进行了一番讨价还价。