音标：['reiʃәu] ；柯林斯词典等级：2 级；

n. 比, 比率
[医] 比, 比率, 比例

n. the relative magnitudes of two quantities (usually expressed as a quotient)

词型变化：名词复数形式 : ratios
考试类型：[四级/六级/考研/托福/IELTS]

词性分布：

名词100%

ratio的用法和样例：

例句

用作名词(n.)

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。
The ratio of schoolboys to schoolgirls is 2 to 1.男学生和女学生的比例是2比1。
The ratio of nursing staff to doctors is 2:1.护士和医生的比例是2：1.

常见句型

用作名词(n.)

The ratio of pupils to teachers was 30 to 1.学生和老师的比率是30比1。
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。

词汇搭配

用作名词 (n.)

动词+～

show a ratio of...to...比率为…比…

形容词+～

direct〔inverse〕ratio正〔反〕比

名词+～

birth〔death〕ratio出生〔死亡〕率
current ratio电流比

介词+～

at the ratio按比率
by a ratio of根据…的比率
in direct ratio按正比率
with the ratio of以…比率

～+介词

ratio between两者之间的比
ratio of...to...…与…之比
ratio to对…的比率

【近义词】

proportion部分
percentage百分率
comparison比较
relative amount相对量
relation关系
share分享，共享
part部分
fraction小部分
quotient份额
relationship关系
quota限额
scale刻度

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