1. I can't subscribe to unnecessary killing.
   我不能同意不必要的杀戮。
2. Personally, I feel that might be a bit unnecessary.
   我个人以为这或许有点不必要。
3. It's unnecessary to cooka big meal tonight.
   今晚不必做很多饭.
4. That was an unnecessary remark.
   那句话是多余的。
5. They cut down unnecessary expenditure.
   他们削减了不必要的开支。

　1个形容词解释