你們不認識他們。

You don't know them.

Source: Tatoeba

Sentence Composition

1 你們 nǐmen you (plural)
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 認識 rènshi
  1. to know
  2. to recognize
  3. to be familiar with
  4. to get acquainted with sb
  5. knowledge
  6. understanding
  7. awareness
  8. cognition
4 他們 tāmen they; them