是（某人的）宠儿
to be the person that someone in authority likes best and treats better than anyone else
be (the) teacher's pet The other children hated her because she was the teacher's pet. 别的孩子都恨她，因为她是老师的宠儿。
Tommy went from being teacher's pet to the bad boy of the class.
He loved all his children, but Lauren was his special pet.
He was the coach's pet and the other team members were jealous.
She was the boss's pet and could always persuade him to let us off early.
See also: pet noun (PERSON)