安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- 4 - Wikipedia
4 (four) is a number, numeral and digit It is the natural number following 3 and preceding 5 It is a square number , the smallest semiprime and composite number , and is considered unlucky in many East Asian cultures
- Learn About the Number 4 | Number of the Day: 4 | Four with . . . - YouTube
Learn to recognize and understand Number 4 Learn to count up to and down from four Created by teachers, learn how to show 4 in a ten frame Learn to draw 4
- 4 (number) - New World Encyclopedia
4 (four) is a number, numeral, and glyph that represents the number It is the natural number [1] that follows 3 and precedes 5 It is an integer and a cardinal number, that is, a number that is used for counting [2] In addition, it is classified as a real number, [3] distinguishing it from imaginary numbers
- 4 (number) - Simple English Wikipedia, the free encyclopedia
In mathematics, the number four is an even number and the smallest composite number Four is also the second square number after one A small minority of people have four fingers on each hand and four toes on each foot [source?] Four squared is 16, and four doubled is 8
- 4 - Wiktionary, the free dictionary
4 (prev 3, next 5) The cardinal number four A digit in the decimal system of numbering, and also in octal, and hexadecimal (phonetics, often superscript) The pitch of a tone, either high or low depending on local convention (though not as high or low as 5, if '5' is also used)
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