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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ubiquitous
adjective无处不在的
Seeming to be everywhere.
Smartphones have become ubiquitous.
智能手机已经无处不在。ultimately
adverb最终
A transition meaning "in the end" or "most importantly".
The plan faced many obstacles but ultimately succeeded.
该计划遇到了许多障碍，但最终成功了。undermine
verb削弱
To make something weaker or less effective, often gradually.
The new findings undermine the earlier theory.
新发现削弱了早期理论。underscore
verb强调
To emphasise or show the importance of something.
The results underscore the need for more research.
结果强调了进一步研究的必要性。unit circle
noun单位圆
A circle with radius 1 centred at the origin, used to define trigonometric values.
On the unit circle, cos θ is the x-coordinate.
在单位圆上，cos θ是x坐标。unit conversion
noun单位换算
Changing a measurement from one unit to another, such as minutes to hours.
Unit conversion: 3 hours equals 180 minutes.
单位换算：3小时等于180分钟。unit rate
noun单位比率
A rate for one unit of something, such as $3 per kilogram.
Find the unit rate to compare the two prices.
求单位价格来比较两个价格。unprecedented
adjective前所未有的
Never having happened or existed before.
The city saw unprecedented growth in the 1950s.
这座城市在20世纪50年代经历了前所未有的发展。
variable
noun变量
A letter, such as x or y, that stands for an unknown or changing number.
Solve for the variable x.
求变量x的值。vertex
noun顶点
The highest or lowest point of a parabola; also a corner of a shape.
The vertex of y = (x − 2)² + 3 is (2, 3).
y = (x − 2)² + 3的顶点是(2, 3)。vertical angles
noun对顶角
Opposite angles formed by two crossing lines; they are equal.
Vertical angles have equal measures.
对顶角相等。量；体积；音量
The amount of space something fills, the amount of something, or how loud a sound is.
The volume of online shopping increased sharply.
网购量急剧增加。wary
adjective谨慎的，警惕的
Careful because you think there may be danger or problems.
Investors are wary of new regulations.
投资者对新法规持谨慎态度。weighted average
noun加权平均
An average where some values count more than others.
The final grade is a weighted average of tests and homework.
期末成绩是考试和作业的加权平均。whole number
noun自然数（非负整数）
A number with no fractional part, usually 0, 1, 2, 3 and so on.
The answer must be a whole number.
答案必须是整数。wistful
adjective伤感怀念的
Feeling a gentle sadness and longing for something.
She gave a wistful look at the old house.
她依依不舍地望着那栋老房子。x-axis
noun横轴（x轴）
The horizontal line on a graph, often showing time or categories.
The years are shown on the x-axis.
年份显示在x轴上。x-intercept
nounx轴截距
The point where a graph crosses the x-axis.
Find the x-intercept by setting y to 0.
令y等于0求x轴截距。y-axis
noun纵轴（y轴）
The vertical line on a graph, usually showing amounts or values.
The y-axis shows sales in millions of dollars.
y轴显示以百万澳元计的销售额。y-intercept
nouny轴截距
The point where a graph crosses the y-axis.
The line y = 3x − 4 has a y-intercept of −4.
直线y = 3x − 4的y轴截距是−4。yield
verb产生；屈服
In context: to produce a result; or to give way to pressure.
The experiment yielded surprising results.
这项实验产生了惊人的结果。函数的零点
An input value that makes the function equal zero, shown where the graph crosses the x-axis.
The zeros of the function are −1 and 3.
这个函数的零点是−1和3。