addition(al) element

• 添加元素,加入元素

英英释义

名词 addition:

1. a component that is added to something to improve it

2. the act of adding one thing to another

3. a quantity that is added

4. something added to what you already have

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

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