the irrationals
collocation全体无理数
The irrationals form an infinite set.
无理数构成一个无穷集合。
无理数
先理解核心含义，再看它在真实句子里的用法。
无理数
A real number that cannot be expressed as the quotient of two integers, i.e. an irrational number.
In geometry class, we learned that the square root of 2 is an irrational.
在几何课上，我们学到了根号2是一个无理数。
无理数
A real number that can not be expressed as the quotient of two integers, an irrational number.
不能表示为有理数的实数
a real number that cannot be expressed as a rational number
The number π is an irrational that cannot be expressed as a simple fraction.
圆周率π是一个不能表示为简单分数的无理数。
Irrationals like e appear frequently in calculus problems.
像e这样的无理数经常出现在微积分问题中。
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全体无理数
The irrationals form an infinite set.
无理数构成一个无穷集合。
有理数和无理数
Rationals and irrationals together make up the real numbers.
有理数和无理数共同构成实数。
有理数或无理数
Every real number is either a rational or an irrational.
每个实数要么是有理数，要么是无理数。
二次无理数
The square root of 2 is a quadratic irrational.
2的平方根是一个二次无理数。
Use irrational naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
ir- 表示“不”，rational 是“有理数”，合起来就是“不讲道理的数”——不能写成整数之比的实数。
语域：formal 常见场景：数学、学术写作 作名词时通常用于数学或学术语境，表示“无理数”；日常口语中较少单独使用此词形。
名词，可数，复数形式为irrationals
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.