您要查找的是不是：
- 用A代substitute A for B
- 用A代Bsubstitute A for B
- 常用in common usage
- 不用need not
- 没用useless
- 不用谢You're welcome
- 不仅A而且not merely A but also B
- 硫代硫酸钠hyposulphite
- 用来be used for
- 代行function in an acting capacity of
- 把A误以为take A for B
- 代为on behalf
- 再用reoccupy
- 别忘了代我向他们问好。Don't forget to give my regards to them.
- 领用receive; get
- 别忘记代我问候你的父母亲。Don't forget me to your parents.
- 没用的trashy
- 用A去换change A for B
- 中用useful
- 不用的unused
