如果持續疼痛, 你必須去看醫生。

If the pain continues you have to go to the doctor.

Source: Tatoeba

Sentence Composition

1 如果 rúguǒ
  1. if
  2. in case
  3. in the event that
2 持續 chíxù
  1. to continue
  2. to persist
  3. to last
  4. sustainable
  5. preservation
3 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
=4 你 nǐ you (informal, as opposed to courteous 您 nín)
=4 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
5 必須 bìxū
  1. to have to
  2. must
  3. compulsory
  4. necessarily
6 去 qù
  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)
7 看醫生 kànyīshēng to visit a doctor