Word · Frequency #13072
subset
子集
a set whose members are all members of another set; a set contained within another set
- 1.
a set whose members are members of another set; a set contained within another set
子集；包含于另一个集合中的集合
子集；包含于另一个集合中的集合；子集；[计] 子集; 子设备
In use
A square is a subset of the set of all rectangles.
The team can only work with a subset of the available data.
These five words form a subset of the full vocabulary list.
subset of [set]
表示包含关系时常用此结构。
The set of even numbers is a subset of the set of integers.
偶数集是整数集的一个子集。
proper subset
强调严格包含关系。
A proper subset is a subset that is not equal to the original set.
真子集是不等于原集合的子集。
subset that [verb phrase]
用定语从句限定子集的特征。
We need to find a subset that satisfies the condition.
我们需要找到一个满足条件的子集。
Common mistakes
You should subset the list by date.You should take a subset of the list by date.
‘subset’是名词，不是动词；应用‘take a subset of’或‘extract a subset of’来表示‘取子集’。
This is a subset from the main set.This is a subset of the main set.
‘subset’后应接介词‘of’表示‘…的子集’，而不是‘from’。
Connections
Collocations
- proper subset
- 真子集
- Every set is a subset of itself, but a proper subset is always smaller.每个集合都是自身的子集，但真子集总是更小。
- subset of
- ……的子集
- The set of integers is a subset of rational numbers.整数集是有理数集的子集。
- subset sum
- 子集和
- The subset sum problem asks whether a subset adds up to a given value.子集和问题询问是否存在某个子集的和等于给定值。
- nonempty subset
- 非空子集
- Every nonempty subset of natural numbers has a least element.自然数的每个非空子集都有最小元素。
- finite subset
- 有限子集
- Any finite subset can be listed in a table.任何有限子集都可以列在表格中。
Confusing words
Learner notes
Memory Tip
sub-（在…之下）+ set（集合），想象大集合下面套着一个小集合，就是子集。
Context & Register
语域：neutral 常见场景：数学/集合论、计算机科学、数据分析 subset 是集合论中的标准名词，通常用于数学、计算机科学等正式或技术性语境；日常口语中较少单独使用，但讨论包含关系时也自然出现。
Grammar Note
常与of连用
Pronunciation & Spelling
末尾 /sɛt/ 押韵：sunset, set, reset, bet；开头 /sʌb/ 匹配：subway。注意 subtle 拼作 sub- 但读 /ˈsʌtəl/，b 不发音，与 subset 不同音。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WORDNET.