如果你有什麼不懂的就問。

If there is something you don't understand, then ask.

Source: Tatoeba

Sentence Composition

1 如果 guǒ
  1. if
  2. in case
  3. in the event that
=2 you (informal, as opposed to courteous nín)
=2 you (Note: In Taiwan, is used to address females, but in mainland China, it is not commonly used. Instead, is used to address both males and females.)
3 有什 yǒushén
  1. (literary) what does it have?
  2. (literary) what is there?
  3. what does it have?
  4. what is there?
=4 exclamatory final particle
=4 ma interrogative final particle
=4 me suffix, used to form interrogative 什麼 shénme, what?, indefinite 這麼 zhème thus, etc
=4
  1. tiny
  2. insignificant
5 不懂 dǒng
  1. (as a verbal complement) unable to comprehend (when seeing, hearing, etc.); cannot
  2. to not understand
  3. unable to comprehend (when seeing, hearing, etc.); cannot
=6 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 跑堂兒的 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
=6 a taxi; a cab (abbr. for 的士 shì)
=6 really and truly
=6 (bound form) bull's-eye; target
7 jiù
  1. (after a suppositional clause) in that case; then
  2. (after a clause of action) as soon as; immediately after
  3. (same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
  4. only; as little as
  5. as much as; as many as
  6. to approach; to move towards
  7. to undertake; to engage in
  8. (often followed by zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: jiù ... ...) even if ... still ...
  12. (pattern: ... jiù ...) if not ... then must be ...
8 wèn to ask; to inquire