音标：['vєәriәbl] ；柯林斯词典等级：2 级；

n. 易变的事物, 变数, 可变物, 变量
a. 可变的, 不定的, 易变的, 变量的
[计] 变量

n. something that is likely to vary; something that is subject to variation
n. a quantity that can assume any of a set of values
n. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
a. liable to or capable of change

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

词性分布：

名词90%

形容词10%

variable的用法和样例：

例句

用作形容词(adj.)

Prices are variable according to the rate of exchange.物价会随汇率而变动。
His mood is as variable as the weather.他的情绪如天气般反覆无常。
The quality of the hotel food is distinctly variable.这个旅馆的饭菜有时很好有时很差.

用作名词(n.)

The temperature is a variable in the experiment.在该实验中温度是个变量。
With so many variables, the exact cost is difficult to estimate.由于有许多可变因素,很难准确地估算出成本。
All these variables can affect a student's performance.所有这些变数都会影响学生的成绩。

常见句型

用作形容词(adj.)

用作定语～+ n.

The variable weather is a great trial to me.这种多变的天气真是让我受不了。
He has a variable temper.他的脾气反复无常。

用作表语S+be+～

The speed of the windscreen wipers is variable.汽车挡风玻璃上雨刷的速度是可变的。
Our team's performance this year has been variable.我们队今年成绩很不稳定。

词汇搭配

random variable随机变量,无规变数...
dependent variable因变量
independent variable自变数,自变量...
variable-contrast paper可变反差照相纸...
variable flow异形流动
controlled variable控制量,可控变量,可...
variable motion变速运动
exogenous variable外生变量
boolean variable布尔变量,布尔变数,...
variable area可变截面的
variable bias可变偏压
real variable实变量
variable radix可变基数
variable range变量范围
variable speed能变速的
variable error可变误差
manipulated variable操纵量
complex variable复变量
variable load变动负荷
variable cost可变成本

经典引文

His general health remained variable with occasional febrile states.
出自：J. D. Sutherland

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