如果您不愿意的话，就不必回答。

If you are not willing to speak, then you do not have to answer.

If you don't want to speak, you don't have to answer.

Source: Tatoeba

Sentence Composition

1 如果 rúguǒ
  1. if
  2. in case
  3. in the event that
2 您 nín you (courteous, as opposed to informal 你 nǐ)
3 不愿 bùyuàn unwilling
=4 意 Yì Italy; Italian (abbr. for 意大利 Yìdàlì)
=4 意 yì
  1. idea
  2. meaning
  3. thought
  4. to think
  5. wish
  6. desire
  7. intention
  8. to expect
  9. to anticipate
5 的话 dehuà if (coming after a conditional clause)
6 就 jiù
  1. (after a suppositional clause) in that case; then
  2. (after a clause of action) as soon as; immediately after
  3. (same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
  4. only; as little as
  5. as much as; as many as
  6. to approach; to move towards
  7. to undertake; to engage in
  8. (often followed by 著 zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: 就 jiù ... 也 yě ...) even if ... still ...
  12. (pattern: 不 bù ... 就 jiù ...) if not ... then must be ...
7 不必 bùbì
  1. need not
  2. does not have to
  3. not necessarily
8 回答 huídá
  1. to reply; to answer
  2. reply; answer