SAT
数字化SAT学习词汇：数学术语、语境词汇和语法，用简明英语和8种语言解释。AUSLEX与College Board无关。
已审核词条
372 个词条先从数学英语术语开始：许多学生会做数学题，却因英文表述失分。语境词汇、语法规则卡和原创练习题正在陆续添加。SAT是College Board的商标，最新考试信息请查看官网。
数字化SAT一览
| 阅读与写作 | 54题，两个32分钟模块（共64分钟）；每题配一篇短文。 |
|---|---|
| 数学 | 44题，两个35分钟模块（共70分钟）；所有题目都可用计算器（内置Desmos）；部分题需自行填写答案。 |
| 总计 | 2小时14分钟，另有10分钟休息；每部分第二模块根据第一模块表现调整难度；总分400–1600。 |
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ironic
adjective讽刺的，反讽的
Showing a contrast between what is said and what is meant, or between what is expected and what happens.
It is ironic that the fire station burned down.
消防站被烧毁真是讽刺。无理数
A number that cannot be written as a fraction of two integers, such as π or √2.
√2 is an irrational number.
√2是无理数。isolate
verb使变量单独在一边
In maths, to get a variable alone on one side of an equation.
Isolate x by subtracting 5 from both sides.
两边同时减去5，使x单独在一边。等腰三角形
A triangle with two equal sides and two equal angles.
The base angles of an isosceles triangle are equal.
等腰三角形的两个底角相等。juxtapose
verb并置
To place two things side by side to show a contrast.
The author juxtaposes city life with rural life.
作者将城市生活与乡村生活并置对比。leg
noun直角边
In a right triangle, one of the two sides that form the right angle.
The legs of the triangle are 5 and 12.
这个三角形的直角边是5和12。like terms
noun同类项
Terms that have the same variables raised to the same powers.
Combine like terms: 3x + 5x = 8x.
合并同类项：3x + 5x = 8x。同样地
In the same way; also.
Rents have risen; likewise, food prices have increased.
房租上涨了，同样食品价格也上涨了。
line of best fit
noun最佳拟合线
A straight line drawn on a scatterplot that best represents the data.
Use the line of best fit to predict the score for 6 hours.
用最佳拟合线预测学习6小时的分数。linear equation
noun一次方程
An equation whose graph is a straight line, such as y = 2x + 1.
The linear equation has a slope of 2.
这个一次方程的斜率是2。linear function
noun一次函数
A function whose graph is a straight line, with a constant rate of change.
The cost is a linear function of the number of hours.
费用是小时数的一次函数。margin of error
noun误差范围
The amount by which a survey estimate may differ from the true value.
The estimate is 52% with a margin of error of 3%.
估计值为52%，误差范围为3%。mean
noun平均数
In maths, the average: the sum of the values divided by the number of values.
The mean of 4, 6 and 11 is 7.
4、6和11的平均数是7。meanwhile
adverb与此同时
A transition meaning "at the same time" or "by contrast, during this period".
Sales rose in Europe. Meanwhile, they fell in Asia.
欧洲的销售额上升了。与此同时，亚洲的销售额下降了。measured
adjective有分寸的，审慎的
In context: careful, controlled and balanced, not extreme.
The scientist gave a measured response to the criticism.
这位科学家对批评作出了审慎的回应。median
noun中位数
The middle value when data are listed in order; for an even number of values, the average of the two middle values.
The median of 2, 5, 9, 10 is 7.
2、5、9、10的中位数是7。meticulous
adjective一丝不苟的
Very careful and paying great attention to detail.
She kept meticulous records of every experiment.
她对每一次实验都做了一丝不苟的记录。midpoint
noun中点
The point exactly halfway between two points.
The midpoint of (2, 4) and (6, 8) is (4, 6).
(2, 4)和(6, 8)的中点是(4, 6)。mitigate
verb减轻
To make something bad less serious.
Planting trees can mitigate the effects of heat.
植树可以减轻高温的影响。mode
noun众数
In statistics, the value that appears most often in a data set.
In 3, 4, 4, 6, the mode is 4.
在3、4、4、6中，众数是4。monomial
noun单项式
A polynomial with one term, such as 4x².
6xy is a monomial.
6xy是单项式。moreover
adverb而且，此外
A transition that adds a further, often stronger, point.
The plan is affordable. Moreover, it creates local jobs.
这个计划费用不高。而且，它能创造本地就业。multiple
noun倍数
The result of multiplying a number by an integer.
24 is a multiple of 6.
24是6的倍数。namely
adverb即
A transition that names the exact thing just mentioned.
Two factors explain the change, namely cost and convenience.
有两个因素可以解释这一变化，即成本和便利性。负相关
A relationship where one variable tends to decrease as the other increases.
Price and number sold show a negative correlation.
价格和销量呈负相关。