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ratio 英 [ˈreɪʃiəʊ] 美 [ˈreɪʃioʊ] n. 比例; 比,比率; 系数; vt. 求出比值,除,使…成比例; 将(相片)按比例放大[缩小]; [例句]In 1978 there were 884 students at a lecturer/ student ratio of 1:151978年有884名学生,师生比为1比15。[其他] 复数:ratios
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以较低的比率At a lower rate 在所有研究过的动物身上都发现到,每天花在REM睡眠期的比率,以生命初期为最高,之后会渐渐降到成年时稳定但较低的比率。In all animals studied, the portion of each day devoted to REM sleep is highest early in the subject's life and falls gradually to a steady, lower level in adulthood.
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