ADJECTIVE | VERB + RATIO | RATIO + VERB | PREPOSITIONADJECTIVE➤high, low高比率;低比率➤gender, sex性別比例◇Some universities take steps to keep their gender ratio 50-50.有些大學採取多種措施以保持男女性別比例各佔一半。➤staffing人員配備比◇Staffing ratios were generally better in smaller hospitals.小醫院的人員配備比通常要好一些。➤male-female, nurse-patient, student-teacher, etc.男女、護士與病人、師生等的比例▸➤benefit-to-risk, power-to-weight, etc.利益與風險、權力與責任等之比➤price-earnings, price-to-earnings (bothbusiness商業) 市盈率◇The stock's price-earnings ratio has dropped to 24.該股票的市盈率已跌至 24。VERB + RATIO➤achieve, have實現/擁有比率◇They have a high ratio of imports to exports.他們進口對出口的比率很高。➤improve, increase改善/提高比率◇The hospital is trying to improve its staff / patient ratio.該醫院正努力提高醫患比例。➤reduce降低比率▸➤calculate, compute, determine, find, work out計算比率;確定比率;得出比率;算出比率RATIO + VERB➤improve比率提高▸➤worsen比率惡化◇the worsening student / teacher ratio in our schools我們各學校日趨不合理的師生比例➤differ, range (from... to...), vary比例不同;比例(從⋯到⋯)變化◇Waist-to-hip ratios vary according to body type.腰與臀的比例隨體型的不同而不同。PREPOSITION➤in a/the ratio以⋯比例◇We mixed the oil and water in a ratio of one to five.我們以 1 比 5 的比例混合油和水。➤ratio between⋯之間的比率◇the ratio between the amount of time spent on the work and the profit produced該工作所花時間與獲益之比➤ratio of sth to sth⋯和⋯的比率◇the ratio of house prices to incomes房價與收入之比