不用说

不用說
bùyòngshuō
needless to say; it goes without saying

CEDICT

Entry Composition

1 不用 bùyòng need not
=2 说 shuō
  1. to speak; to talk; to say
  2. to explain; to comment
  3. to scold; to tell off
  4. (bound form) theory; doctrine
=2 说 shuō variant of 说 shuō