不好意思，這本書已經賣完了。

Sorry, the book is out of stock.

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 這 zhè
  1. (pronoun) this; these
  2. (bound form) this; the (followed by a noun)
  3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)
=2 這 zhèi (coll.) this
3 本書 běnshū
  1. book of genealogy
  2. original book; original work
  3. this book
4 已經 yǐjīng already
5 賣完 màiwán to be sold out
=6 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=6 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 瞭 liǎo)
=6 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=6 了 liào unofficial variant of 瞭 liào