elimination by addition and subtraction

例句：

1. 1.The committee decided to eliminate the unnecessary expenses.
   委员会决定取消不必要的开支。
2. 2. The company is eliminating its old products and introducing new ones.
   公司正在淘汰旧产品并引入新产品。
3. 3. The government is eliminating taxes on cigarettes to encourage smoking cessation.
   政府正在取消对香烟的税收以鼓励戒烟。