addition

addition
noun
[mass noun]
  1. the action or process of adding something to something else
    增加
    the hotel has been extended with the addition of more rooms.
    旅馆增加了些房间，扩大了。
    ■[count noun]a person or thing added or joined, typically in order to improve something
    添置的人手；添加物
    you will find the coat a useful addition to your wardrobe.
    你会发现外套会是你衣橱里一件有用的添置。
  2. the process or skill of calculating the total of two or more numbers or amounts
    加法，加
    she began with simple arithmetic, addition and then subtraction.
    她从简单的算术学起，先是加法再是减法。
    ■(Mathematics)the process of combining matrices, vectors, or other quantities under specific rules to obtain their sum or resultant
    (数)加法
常用词组
in addition
  1. as an extra person, thing, or circumstance
    另外，加之
    members of the board were paid a small allowance in addition to their normal salary.
    董事会成员除了正常薪水之外，还有少量津贴。
语源
  1. late Middle English : from Latin additio(n-), from the verb addere (see add)
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