be worlds apart
US /biː wɜːrldz əˈpɑːrt/
UK /biː wɜːrldz əˈpɑːrt/

1.
截然不同, 天壤之别
to be very different from each other
:
•
Their opinions on politics are worlds apart.
他们对政治的看法截然不同。
•
Despite being siblings, their personalities are worlds apart.
尽管是兄弟姐妹,他们的性格却截然不同。