n.增加；加法；附加物
In addition to a diet, she pursues various exercises on TV. 节食以外她还随电视做体操。
In addition to an album, I gave him a pen and a pencil. 除了一本照相簿外，我还给了他一支钢笔和一支铅笔。
They eat a great deal of fruit in addition. 他们还吃大量的水果。
Addition and division are forms of computation. 加法和除法都是计算方法。
We exhibit several addition to our product line. 我们正在展览生产线上增加的几种新产品。
just had an addition to the family, ie another child. 他们家里刚刚又添了一口人（另一个孩子）。
Ann will be a very useful addition to our team. 安来到我们队给我们增加了一员干将。
in addition to意为“加在…上”或“不但…”，其中to是介词，在这不代表不定式，因此用in addition to doing this,而不是in addition to do this。
n.(名词)addition的基本意思是“加”,指将两个或两个以上的人或事物合在一起,作此解时为不可数名词,但有时其前可加不定冠词,作“加法”解。
addition也可指“增加的人〔事物〕”,指在原有的基础上增加的人或物,此时为可数名词。
