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sup.ple.men.ta.ryH.sQp7lI5men7t[r7i, $-tL- Bm also sUp.ple.men.tal H.sQp7lI5men7t[l, $-t[ladj [not gradable]增补的，补充的，额外的Although the book does not represent a thorough course in astrophysics, it will make excellent supplementary reading.虽然这本书不能算作天文物理学的全面课本，但它是一本极好的补充读物。The farmer has a supplementary income from letting part of his land to campers.那个农场主把一部分地租给露营者从而获得一笔额外收入。The money he makes from selling the vegetables he grows in his garden is supplementary to his main income.他出售自己花园种的蔬菜赚到的钱成为主要收入的补充。(specialized) If an angle is supplementary to another angle, it forms 180 when combined with it.（角）互补的An angle of 80 is supplementary to an angle of 100--they are supplementary angles.80度角是100度角的补角----它们互为补角。
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