【轉】英文標點符號

  +  plus 加號;正號 -  minus 減號;負號 ± plus or minus 正負號 × is multiplied by 乘號 ÷ is divided by 除號 = is equal to 等於號 ≠ is not equal to 不等於號 ≡ is equivalent to 全等於號 ≌ is equal to or approximately equal to 等於或
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