估計他有些不開心。

I guess he is a bit unhappy.

Source: Tatoeba

Sentence Composition

1 估計 gūjì
  1. to estimate; to assess; to calculate
  2. (coll.) to reckon; to think (that ...)
2 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
3 有些 yǒuxiē
  1. some
  2. somewhat
4 不 bù
  1. no; not so
  2. (bound form) not; un-
5 開心 kāixīn
  1. to feel happy
  2. to rejoice
  3. to have a great time
  4. to make fun of sb