天氣每天都在變。

The weather varies from day to day.

Source: Tatoeba

Sentence Composition

1 天氣 tiānqì weather
2 每天 měitiān every day
=3 都 Dū surname Du
=3 都 dōu
  1. all; both; entirely
  2. (used for emphasis) even
  3. already
  4. (not) at all
=3 都 dū
  1. capital city
  2. metropolis
4 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
5 變 biàn
  1. to change
  2. to become different
  3. to transform
  4. to vary
  5. rebellion