Take it on oneself to

• 擅自决定

Take it on oneself to的用法和样例：

例句

1. I do not arrogate to myself the right to decide.
   我不擅自决定。
2. Mother made her decision to have her daugher take part in the English summercamp without consulting her.
   妈妈擅自决定为女儿报名参加外语夏令营。