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单词
prime number
释义
prime number (mathematics 数) number which can be divided exactly only by itself and 1 (eg 7, 17, 41) 质数, 素数(只能被1和这个数本身整除的数, 如7、 17、 41).
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back number
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backpacking
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backrest
back road
back room
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back seat
backside
backslide
backsliding
backspace
backstage
backstroke
back talk
backtrack
back-up
backward
backwardness
backwards
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backwater
backwoods
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更新时间:2026/10/25 2:59:42