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2024年4月15日发(作者：c语言volatile关键字)
加号
（+）：plus; sum of;is increased by
减号（-）：minus; is reduced by; is decreased by
除号（÷）：divided by;quotient
乘号（×）：times;product of
等于（=）：is equal to;equals;is;gives;results in;becomes
未知数（n,x,y,z）：a number
例子：n+2: a number is increased by 2
10÷n: 10 divided by a number
5×n=15： the product of five and a number is fifteen
(20÷n)-2=10： twenty divided by a number,reduced by two is ten
20÷(n-2)=10: twenty, divided by a number,reduced by two is ten
8n+6=11:the product of eight and a number,plus six gives eleven
8×(n+6)=11:the product of eight,and a number plus six equals eleven
12÷（n+4）=2:twelve divided by a number which is increased by four becomes two
x÷2+3=x-7:a number divided by two,plus three is the same number minus seven
(x+4)²=709+5(x):a number increased by four,all squared,equals seven hundred nine plus fiv
e times the number
大于0：positive 小数点：decimal
小于0：negative 倒数：reciprocal;multiplicative inverse
基数：basis 比例：ratio
指数：exponent 百分数：percent
科学计数法：scientific notation 平方根：square root
有理数：rational number 估算：estimate
自然数：natural number 平面直角坐标系：Cartesian Plane
整数：integer x轴：X axis
分数：fraction Y轴：Y axis
变量：variable 周长：perimeter
方程：equation 体积：volume
勾股定理：pythagorean relationship 面积：area
斜边：hypotenuse 多边形：polygon
角：angle 直角：right angle (圆)周长：circumference
四边形：quadrilateral 直径：diameter
平行四边形：parallelogram 半径：radius
平行：paralle 棱镜：prism
三角形：triangle 圆柱：cylinder
矩形：rectangle 立方体：cube
菱形：rhombus 表面积：surface area
梯形：trapezoid
正方形：square
放大：enlargement
缩小：reduction
比例尺：scale
区域：region
统计：statistic
可能性：probability
数据：data(复数形式，一般使用复数)
平均数：mean
中位数：median
众数：mode
极差：range
锐角：acute angle
高：altitude;height
顶点：vertex
二项式：binomial
平分线：bisector
容量：capacity
系数：coefficient
seven multipled by ten to the power of minus seven
7 * (10^(minus 7)) = 7.0 × 10
-7
seven multipled by ten to the power of negative seven
seven times ten to the negative seventh power
6.02×10
23
six point zero two times ten to the power of twenty-three
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