poles apart
US /poʊlz əˈpɑːrt/
UK /poʊlz əˈpɑːrt/

1.
截然不同, 天壤之别
completely opposite or different from each other
:
•
Their political views are poles apart.
他们的政治观点截然不同。
•
Despite being siblings, their personalities are poles apart.
尽管是兄弟姐妹,他们的性格却截然不同。