是的，當然。

Yes, of course.

Yes, certainly.

Source: Tatoeba

Sentence Composition

1 是的 shìde
  1. yes, that's right
  2. variant of 似的 shìde
2 當然 dāngrán
  1. only natural
  2. as it should be
  3. certainly
  4. of course
  5. without doubt