英语词汇ascertain的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	ascertain
词根词缀	词源： early 15c., "to inform, to give assurance," from O.Fr. acertener "to assure" (13c.), from a "to" + certain "certain" (see certain). Modern meaning of "to find out for sure by experiment or investigation" is first attested 1794. 词根记忆： vt. 确定,查明,弄清It is difficult to ascertain what happened here.这里发生的事情很难查明. 确定,发现[cern,cert,cret=sure,separate,表示"搞清,区别"] 词根词缀： ascertain ascertain确定,发现 cern, cert, cret=sure, separate,表示”搞清,区别”concern 关系到discern辨别,区分(dis分开+cern=分开搞清=区别) discernmible能够分辨的discernment辨别能力centain肯定的(cert+ain=搞清楚的=肯定的) ascertain确定,发现certify证明,保证certificate证明书,执照(certify+icate=证明的东西) certitude确信,确实discrete分立的(dis分开+creet区别=分开区别=不同的) discretion谨慎,小心discreet慎重的,谨慎的secret秘密的(se分开+cret区别=分开来放=秘密的)
随便看	have an advantage have an advantage over have back have done with have got to have in mind have mercy on haven have need to do sth. have no business have no lack of have nothing to do with have notice of have on have one's day have one's moment have only to have out have respect for haversack have something to do with have sth. to do with have to have to do with have...to do with

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