Addition
n.
1、in addition 除此之外，此外
释义：used to add another piece of information to what you have just said
举例：
The company provides cheap internet access.In addition,it makes shareware freely available.
该公司提供廉价的因特网接入服务。此外，它还推出免费的共享软件。
In addition to sth
In addition to his movie work,Redford is known as a champion of environmental causes.
除了电影事业外，雷德福还是位公认的环保斗士。
2、增添、添加
释义：the act of adding something to something else.
举例：
The addition of something
The addition of networing facilities will greatly enhance the syetem.
增加网络设备将会大大增强系统的性能。
With the addition of sth
Turn sparkling wine into Buck’s Fizz with the addition of chilled orange juice.
在发泡葡萄酒里加冰冻橙汁，做成巴克菲士鸡尾酒。
3、增加物，添加物
举例：
（+to）
This excellent book will be a welcome addition to the library of any student.
这本好书会成为受所有学生喜爱的新藏书。
Latest/new/recent addition
The latest addition to our designer range.
我们名师设计系列的最新款式。
4、加法（subtraction）
释义：the process of adding numbers or amounts to make a total.
5、（建筑物的）扩建部分（美）
举例：
They built a big addition onto the back of the house.
他们在房子后面加盖了一间大屋子。
知识延伸：
Additional adj 额外的，附加的
An additional charge is made on baggage exceeding the weight allowance.
行李超重要额外收费。
需注意的是：
In everyday English,people usually say extra rather than additional.
在日常英语中，人们一般说extra,而不说additional:
He gets extra money from his parents.
他在父母那儿另有钱拿。
