| 单词 | 一个集 |
| 释义 | 〔nineteen〕The 19th in a set or sequence.第十九个：在一个集合或序列中的第十九个〔take〕To rise to deliver a formal speech, as to an assembly.站着发表演说：站起来发表一篇正式演说，比如对一个集会〔maximum〕The largest number in a set.最大数：一个集合里面的最大数〔group〕Group as a collective noun can be followed by a singular or plural verb. It takes a singular verb when the persons or things that make up the group are considered collectively: Group 做为一个集合名词后面跟单数或复数动词均可。 当组成该群体的人或物体被看做一个集合时，后面跟动词单数： 〔Kurnool〕A city of south-central India northwest of Madras. A market town, Kurnool was overrun by Moslems in 1565 and ceded to the British in 1800. Population, 206,362.卡努尔：印度中南部一城市，位于马德拉斯西北。一个集镇，1565年为穆斯林所侵占，1800年被割让给英国。人口206,362〔infinite〕Infinite is sometimes grouped with absolute terms such asunique, absolute, and omnipotent, since in its strict mathematical sense it allows no degree modification or comparison;one quantity cannot be more infinite than another (though technically one infinite set can be larger than another).Unlike other absolute terms, however,infinite also does not permit modification by adverbs such as nearly and almost; mathematically, infinity is not approached by degrees.In nontechnical usage, of course,infinite is often used metaphorically to refer simply to an unimaginably large degree or amount, and here the comparison of the word is unexceptionable: Infinite 有时被一些表示绝对意义的词修饰， 如unique ， absolute 和 omnipotent ， 由于在其严格的数学意义上它不允许表示程度的修饰或比较，一个数不可能比另一个数“更加无穷大”（虽然以技术上讲一个无穷集可以比另一个集更大）。但是，与其它表示绝对意义的词不同，infinite 也不能用 nearly 和 almost 这一类副词来修饰； 以数学上讲，无穷大是不能逐步接近的。当然，在非技术性的用法中，infinite 常常隐喻地仅指明一个难以想象的大程度或数量， 在这种用法下，仍然不能使用比较： 〔algebra〕A set together with operations defined in the set that obey specified laws.代数集合：一个集合及符合特定运算规律的该集合的运算法则〔nine〕A set of nine persons or things, especially:九人，九人一组之物：含有九个人或事物的一个集合，尤指〔nine〕The ninth in a set or sequence.第九个：在一个集合或序列中的第九个〔partition〕The decomposition of a set into a family of mutually exclusive sets.划分，分类：把一个集合分拆成几个互相排斥的集合族 |
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