ratio
/ˈreɪʃɪəu; `reʃɪˌo/ n
(pl ~s) relation between two amounts determined by the number of times one contains the other 比; 比率
The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同.
Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子. Cf 参看 proportion.