名詞
1.不可數(shù)名詞：加；加法
2.可數(shù)名詞：增加物；添加物
3.不可數(shù)名詞：增加；添加 詞形變化

形容詞 additional

副詞 additionally

這些名詞均含“附加物、增加物”之意。
addition僅強(qiáng)調(diào)數(shù)量的增加。
appendix指書末的附錄。
attachment指用于擴(kuò)大原物用途的附件。
supplement主要指使書、報(bào)等正廣更完善而額外增加的部分。
accessory作“附件”解時(shí)，與attachment同義，可互換，但還指增加美觀的附屬品。

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

something added to what you already have

a quantity that is added

the act of adding one thing to another

a component that is added to something to improve it

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

with the addition of 加上,外加,包括…

addition to 適添加

in addition to ad. 1.除…之外，還……（somebody/something) 2.除……之外，并且……

in addition prep.此外，加之，又

pmestone addition 石灰石摻合料

addition method 【化】 疊加法

track addition 增加軌道

reactivity addition 反應(yīng)性增加

octal addition 八進(jìn)制加法

addition diet 附加飲食

addition n.1.[U]加；加法2.[C]增加物；添加物3.[U]增加；添加

cis addition 【建】 順(式)加(成)作用

addition compound 【醫(yī)】 加成產(chǎn)物

cyclo addition 環(huán)化加成

micro addition 微量加入物

photo addition 光化加成反應(yīng)

trans addition 反式加成

epmination addition 【化】 消除-加成