音標發(fā)音英式音標 [d??kri?s]美式音標 [?di?.kri?s]國際音標 [di'kri:s, 'di:-, 'di:kri:s, di'k-]英式發(fā)音 美式發(fā)音 基本解釋v. 減少，減小，降低 n. 減少，減?。粶p少量；減少過程詞源解說 14世紀晚期進入英語，直接源自中古英語的decresen，意為減少，縮減。詞根記憶de(變慢) + cre(生長) + ase→減少de(相反) + cre(增長，產生) + ase→與增長相反的是減少→減少，減小de(相反) + cre(生長) + ase→減少de(反) + cre(生長) + ase→減少de(向下) + crease(增長，產生)→負增長→減少，減??；和increase(n./v.增加)一起記同根派生adj性質的同根詞decreasing：漸減的。v性質的同根詞decreasing：減少；縮減（decrease的ing形式）。decreased adj. 減少的decrease相關詞英漢例句用作動詞 (v.)用作不及物動詞: S+～(+A)The traffic accidents in the city decreased last year.該城市去年交通事故減少了。用作及物動詞: S+ ～+n./pron.They decreased the size of the group from 25 to 15.他們把小組的人數從25人減少到15人。用作名詞 (n.)The decrease in sales was almost 20 percent.銷售量差不多減少了20％。decrease更多例句詞組短語用作動詞 (v.)～+介詞decrease by 3 times 減少三倍decrease by 5 tons 減少五噸decrease by ten percent 減少百分之十decrease in number 數目減少decrease to 減少到用作名詞 (n.)形容詞+～gradual decrease 逐漸下降decrease更多詞組英英字典劍橋英英字典 to become less, or to make something become less a reduction柯林斯英英字典dkrisdikrisdkris A decrease in the quantity, size, or intensity of something is a reduction in it. decrease劍橋字典decrease柯林斯字典