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单词 alternate
释义 alternate[ɔ:l'tə:nət; 'ɔ:ltə-; 'ɔ:ltəneit]adj.1.■轮流的;交替(发生)的;更迭的;相间的2.■间隔的;交错的3.■预备的,候补的;供替代的,供替换的;供选择的4.■相互的5.■作为旧风俗习惯(或价值观、思想观念等)的替代物的,替代性的(= alternative)6.■【植物学】7.■互生的;交互的8.■在他部之间隔距设置的n.1.■[美国、加拿大英语]代理人,代表人;代替人;接替人;代行职权者;候补者;代替物,代用品,替换物2.■轮流者;交替者,交替的东西3.■选择;选择对象4.■【戏剧】替角,轮流担任同一角色的演员vt.1.■使交替;使轮流;使更迭:to alternate hot and cold compresses交替使用冷热敷布She alternated singing and dancing.她一会儿唱歌,一会儿跳舞。2.■使交替出现,使更迭发生;轮流进行(或做、用);轮番演出;交替地安排;使交替排列,交替(位置等);使相间:to alternate jogging and walking一会儿慢跑,一会儿走路to alternate comedy acts轮流穿插喜剧表演vi.1.■交替;更迭,轮流(或交替)地做;交替发生;一时…一时…;间隔着穿插 (between,with):Day alternates with night.昼夜交替。She alternated between hope and despair.她时而充满希望,时而绝望。2.■依次;轮流:Helen and her sister will alternate in setting the table.海伦和她妹妹将轮流摆餐具准备开饭。My younger sister and I alternated in doing the dishes.我妹妹和我轮流洗盘碟。3.■定期地交换位置;经常更换住所:She alternated between New York,Chicago and San Francisco.她经常在纽约、芝加哥和旧金山轮流居住。4.■【戏剧】(为其他演员)作替角(for):The star actor was ill, so his understudy had to alternate for him.这位明星演员病了,因而他的替角必须代他演出。5.■【语言学】(作为异体与另一形式)交替出现6.■【电学】(电流)交流;作交流电运转:Diodes are electronic devices which rectify alternating current to direct current.二极管是将交流电整流成直流电的电子装置。近义词intermittentevery alternate每隔变形 vt.alternatedalternating
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