| 释义 |
ra·ti·o /`reʃo; ˈreɪʃiəʊ/
n [C]
plural ratios a relationship between two amounts written as two numbers that show how much bigger one amount is than the other 〔表示两个数量之间关系的〕比，比例，比率:
ratio of sth to sth a school where the ratio of students to teachers is about 5:1 (=five students for every teacher) 学生和老师的比例约为五比一的学校
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