teacher's pet
US /ˈtiː.tʃərz ˌpet/
UK /ˈtiː.tʃərz ˌpet/

1.
老師的寵兒, 優等生
a student who is liked best by the teacher and is treated better than other students
:
•
Everyone in class thought she was the teacher's pet because she always got special treatment.
班上所有人都認為她是老師的寵兒,因為她總是得到特殊待遇。
•
He was always the teacher's pet, volunteering for extra tasks and getting praised constantly.
他一直是老師的寵兒,主動承擔額外任務並不斷受到表揚。