addition

1.[u]加；加法the process of adding two or more numbers together to find their total

2.[c]~ (to sth)增加物；添加物a thing that is added to sth else

3.[u]~ (of sth)增加；添加the act of adding sth to sth else

4.[c]~ (to sth)（建筑物的）扩建部分，增建部分a new part that is added to a building

1.【数】加法,加算

2.附加,追加;附加物

3.【法】(加在姓名后的)头衔,官衔;称号

4.(建筑物的)附加部分

1.something that you add to something else; the action of adding something to something else

2.the process of adding two or more numbers or amounts together to make a total

3.a room or area that is added to a building. The usual British word is extension.