减法

• Try adding up this time instead of subtracting
  这次试用加法，不用减法。
• Please add up this time instead of subtracting
  这次请用加法，不用减法。
• Structure that contains the results of the subtraction
  结构，它包含该减法运算的结果。
• That is the result of the subtraction operation
  ，它是减法运算的结果。
• Structure that is the result of the subtraction operation
  结构，它是该减法运算的结果。
• Structure to the right of the subtraction operator
  减法运算符右侧的源
• That is a result of the subtraction operation
  ，它是减法运算的结果。
• Structure to the left of the subtraction operator
  减法运算符左侧的源
• Structure that represents the result of the subtraction
  结构，该结构表示减法运算的结果。
• Having thus mastered addition they move on to subtraction
  学会加法后他们就开始学习减法。