the upper crust
US /ðə ˈʌpər krʌst/
UK /ðə ˈʌpər krʌst/

1.
上流社會, 上層階級, 精英階層
the highest class or most privileged people in a society
:
•
They belong to the upper crust of society.
他們屬於社會的上流階層。
•
Only the upper crust can afford to live in that exclusive neighborhood.
只有上流社會才能負擔得起住在那個專屬社區。