基本含义
addition 是一个英语名词，主要表示“增加”、“添加物”或“加法”等意思。它源自动词 add（添加），常用于数学、日常对话和正式写作中。
常见用法与例句
1. 表示“加法”（数学运算）
- She is learning addition and subtraction in math class.
- The teacher explained how to do addition with carrying.
2. 表示“增加的人或物”
- The new baby is a wonderful addition to the family.
- This painting is a recent addition to the museum’s collection.
3. 表示“额外的部分”（常与 in addition (to) 搭配）
- In addition, we need to consider the environmental impact.
- In addition to English, she speaks French and Spanish.
常用搭配
a new addition：新成员／新增部分in addition：此外，另外in addition to + 名词/动名词：除了……之外（还）make an addition to：对……进行增添
注意事项
注意区分 addition（名词）与 additional（形容词）。例如：
- We need additional time to finish the project.（我们需要额外的时间。）
- The addition of sugar changed the taste.（糖的加入改变了味道。）