他們不太認識對方。

They don't know each other very well.

Source: Tatoeba

Sentence Composition

1 他們 tāmen they; them
2 不 bù
  1. no; not so
  2. (bound form) not; un-
=3 太 tài
  1. highest
  2. greatest
  3. too (much)
  4. very
  5. extremely
=3 太 tā
  1. (Korean Classical Chinese) soybean
  2. (obsolete on its own in Standard Chinese) only used in 太末
  3. only used in 太末
  4. soybean
4 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
5 對方 duìfāng the other person; the other side; the other party