天氣差的時候去爬山是很危險的。

It's dangerous to climb a mountain in bad weather.

Source: Tatoeba

Sentence Composition

1 天氣 tiān weather
=2 chā
  1. difference; discrepancy
  2. (math.) difference (amount remaining after a subtraction)
  3. (literary) a little; somewhat; slightly
=2 chà
  1. different
  2. wrong; mistaken
  3. to fall short; to lack
  4. not up to standard; inferior
  5. Taiwan pr. chā
=2 chāi
  1. to send (on an errand)
  2. (archaic) person sent on such an errand
  3. job; official post
=2 used in 参差 cēn
=2 cuō
  1. (obsolete on its own in Standard Chinese) Original form of (cuō, “to rub with one's hands; to scrub; to twist”).
  2. Original form of (cuō, “to rub with one's hands; to scrub; to twist”).
=2 chài
  1. (obsolete on its own in Standard Chinese) Original form of (chài, “to recover from an illness”).
  2. Original form of (chài, “to recover from an illness”).
=3 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 de "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. or di in poetry and songs
=3 a taxi; a cab (abbr. for 的士 shì)
=3 really and truly
=3 (bound form) bull's-eye; target
4 時候 shíhou
  1. time
  2. length of time
  3. moment
  4. period
5
  1. to go
  2. to go to (a place)
  3. (of a time etc) last
  4. just passed
  5. to send
  6. to remove
  7. to get rid of
  8. to reduce
  9. to be apart from in space or time
  10. to die (euphemism)
  11. to play (a part)
  12. (when used either before or after a verb) to go in order to do sth
  13. (after a verb of motion indicates movement away from the speaker)
  14. (used after certain verbs to indicate detachment or separation)
6 爬山 shān to go for a hike (esp. in the hills or mountains)
=7 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=7 shì variant of shì
8 hěn
  1. very; quite
  2. (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)
9 危險 wēixiǎn
  1. danger
  2. dangerous
=10 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 de "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. or di in poetry and songs
=10 a taxi; a cab (abbr. for 的士 shì)
=10 really and truly
=10 (bound form) bull's-eye; target