in someone's good books
US /ɪn ˈsʌm.wʌnz ɡʊd bʊks/
UK /ɪn ˈsʌm.wʌnz ɡʊd bʊks/

1.
讨某人喜欢, 在某人面前表现好
to be in favor with someone because you have pleased them
:
•
I'm trying to get in my boss's good books by finishing this project early.
我正努力通过提前完成这个项目来讨好我的老板。
•
She's always in her teacher's good books because she's a diligent student.
她总是讨老师喜欢,因为她是个勤奋的学生。