n.

a component that is added to something to improve it

"the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor"

同義詞：add-onimprover

the act of adding one thing to another

"the addition of flowers created a pleasing effect"; "the addition of a leap day every four years"

a quantity that is added

"there was an addition to property taxes this year"

同義詞：increasegain

something added to what you already have

"he was a new addition to the staff"

同義詞：accession

a suburban area laid out in streets and lots for a future residential area

the arithmetic operation of summing; calculating the sum of two or more numbers

同義詞：summationplus

1. The house renovations included several additions, like a new garage and patio.
   房子的裝修包括幾個新增部分，比如新車庫和露臺。
2. There were several additions to the team this year, including two new developers.
   今年團隊有幾個新增成員，包括兩名新開發(fā)人員。