那是一本詞典。

It's a dictionary.

Source: Tatoeba

Sentence Composition

=1 那是 nàshi
  1. (coll.) of course
  2. naturally
  3. indeed
=1 那是 nàshì
  1. (colloquial) of course
  2. of course
2 一本 yīběn
  1. (Mainland China, education) the first tier of universities
  2. (judo) ippon
  3. Used other than figuratively or idiomatically: see 一, 本 (běn).
  4. another version (terminology in collation)
  5. entirely based on
  6. having the same origin
  7. ippon
  8. the first tier of universities
3 詞典 cídiǎn
  1. dictionary
  2. also written 辞典 cídiǎn

classifiers: 部, 本