不敢苟同

bùgǎngǒutóng
to beg to differ (idiom)

CEDICT

to beg to differ; to disagree

Wiktionary

Entry Composition

1 不敢 bùgǎn
  1. (regional) cannot; must not; should not
  2. You flatter me; I wouldn't presume; I don't deserve this (praise, reward, etc.)
  3. cannot; must not; should not
  4. to not dare (to do something)
2 苟同 gǒutóng to agree blindly