I beg to differ

成語所屬單字beg

I beg to differ — 慣用語

1. A polite way to say you disagree with something just said.

1.慣用語
釋義

恕難同意

A polite way to say you disagree with something just said.

例句

You think it's easy? I beg to differ.

I beg to differ with your opinion on the matter.