當天氣變冷的時候，我的關節疼痛。

My joints ache when it gets cold.

Source: Tatoeba

Sentence Composition

=1 當天 dāngtiān on that day
=1 當天 dàngtiān the same day
=2 氣 qì
  1. gas; air
  2. smell
  3. weather
  4. to make angry; to annoy; to get angry
  5. vital energy; qi
=2 氣 xì
  1. (obsolete on its own in Standard Chinese) Original form of 餼／饩 (xì, “to give food as a gift”).
  2. Original form of 餼／饩 (xì, “to give food as a gift”).
3 變 biàn
  1. to change
  2. to become different
  3. to transform
  4. to vary
  5. rebellion
=4 冷 Lěng surname Leng
=4 冷 lěng cold
=4 冷 líng only used in 冷凙／冷𪞝
=4 冷 lǐng only used in 㓑冷
=5 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
=5 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=5 的 dí really and truly
=5 的 dì (bound form) bull's-eye; target
6 時候 shíhou
  1. time
  2. length of time
  3. moment
  4. period
7 我 wǒ
  1. I
  2. me
  3. my
=8 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
=8 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=8 的 dí really and truly
=8 的 dì (bound form) bull's-eye; target
9 關節 guānjié
  1. joint (physiology)
  2. key point
  3. critical phase
10 疼痛 téngtòng
  1. pain
  2. (of a body part) to be painful; to be sore; to hurt
  3. (of a person) to be in pain