(英语:dozen)为量词,即数字12的另一种表示法[1][2]

举例来说,“1打原子笔”就是指“12支原子笔”,“2打原子笔”等于“24支原子笔”,将打置换为12后再做乘法运算即可得知正确的数量。其他相关量词:12打(122=144)称为1,半打称为一[3]

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