1. out of commission : 退役, 不能使用；
2. on commission : 抽取佣金；
3. in commission : 服役, 可使用；
4. go beyond one's commission : 越权；
及物动词
名词
1. 正式委托;委托(做)
If you commission something or commission someone to do something, you formally arrange for someone to do a piece of work for you.