不好意思，您可以再說一遍嗎？

Excuse me, could you repeat that?

Source: Tatoeba

Sentence Composition

1 不好意思 bùhǎoyìsi
  1. to feel embarrassed
  2. to find it embarrassing
  3. to be sorry (for inconveniencing sb)
2 您 nín you (courteous, as opposed to informal 你 nǐ)
3 可以 kěyǐ
  1. can
  2. may
  3. possible
  4. able to
  5. not bad
  6. pretty good
4 再說 zàishuō
  1. to say again
  2. to put off a discussion until later
  3. moreover
  4. what's more
  5. besides
5 一遍 yībiàn
  1. one time (all the way through)
  2. once through
=6 嗎 má (coll.) what?
=6 嗎 mǎ used in 吗啡 mǎfēi
=6 嗎 ma (question particle for "yes-no" questions)