所属栏目：学生英汉双解
n. quantitative relation be-tween two similar magnitudesexpressed as the number oftimes one contains the other比率;比值:There is a ratioof two boys to three girls inthe club.这个俱乐部里男孩与女孩的比例是2:3。 ......（本文共 165 字 ） [阅读本文] >>
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