这就是你正在找的那本书。

This is the book which you are looking for.

Source: Tatoeba

Sentence Composition

1 这就 zhèjiù
  1. immediately
  2. at once
=2 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 shì variant of shì
=3 you (informal, as opposed to courteous nín)
=3 you (Note: In Taiwan, is used to address females, but in mainland China, it is not commonly used. Instead, is used to address both males and females.)
4 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
5 zhǎo
  1. to try to find
  2. to look for
  3. to call on sb
  4. to find
  5. to seek
  6. to return
  7. to give change
=6 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 de "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. or di in poetry and songs
=6 a taxi; a cab (abbr. for 的士 shì)
=6 really and truly
=6 (bound form) bull's-eye; target
=7 surname Na
=7 Nuó surname Nuo
=7 variant of
=7
  1. (specifier) that; the; those (colloquial pr. nèi)
  2. (pronoun) that (referring to persons, things or situations)
  3. then (in that case)
=7 nuó
  1. (archaic) many
  2. beautiful
  3. how
  4. old variant of nuó
8 本书 běnshū
  1. book of genealogy
  2. original book; original work
  3. this book