我真是不好意思！

I'm really sorry!

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
=2 真是 zhēnshi
  1. indeed; truly
  2. (coll.) (used to express disapproval, annoyance etc)
=2 真是 zhēnshì
  1. (colloquial) Used to express dissatisfaction or annoyance; honestly!
  2. Used other than figuratively or idiomatically: see 真 (zhēn), 是 (shì): (it) really is; (it) truly is
  3. Used to express dissatisfaction or annoyance; honestly!
3 不好意思 bùhǎoyìsi
  1. to feel embarrassed
  2. to find it embarrassing
  3. to be sorry (for inconveniencing sb)