看看天的样子，要下雨了。

Judging from the look of the sky, it is likely to rain.

Source: Tatoeba

Sentence Composition

=1 看看 kànkan
  1. to take a look at
  2. to examine
  3. to survey
  4. (coll.) pretty soon
=1 看看 kànkàn
  1. (colloquial) pretty soon
  2. (literary) gradually
  3. gradually
  4. placed after a verb or a verb phrase to indicate a trial, interchangeable with 看一下.
  5. pretty soon
  6. to examine and survey; to see
  7. to glance at; to take a quick look at; to have a look-see; to thumb through (a book, etc.)
  8. to see the sights
  9. to visit; to call on
2 天 tiān
  1. day
  2. sky
  3. heaven
=3 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=3 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=3 的 dí really and truly
=3 的 dì (bound form) bull's-eye; target
4 样子 yàngzi
  1. appearance
  2. manner
  3. pattern
  4. model
=5 要 yāo (bound form) to demand; to coerce
=5 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
=5 要 yǎo
  1. (archaic) alternative form of 偠 (yǎo)
  2. alternative form of 偠 (yǎo)
  3. used in 要褭／要袅
6 下雨了 xiàyǔle It’s raining.