arbitrary function

例句：

1. 1. The decision was made arbitrarily by the company president.
   公司总裁随意地做出了决定。
2. 2. He acted arbitrarily and caused unnecessary trouble for everyone.
   他行为武断，给每个人带来了不必要的麻烦。
3. 3. The manager made the decisions arbitrarily without consulting the employees.
   经理没有与员工商量就随意做出了决定。