只要你开心就行了。

I don't care as long as you are happy.

Source: Tatoeba

Sentence Composition

1 只要 zhǐyào so long as; provided; if
=2 你 nǐ you (informal, as opposed to courteous 您 nín)
=2 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.)
3 开心 kāixīn
  1. to feel happy
  2. to rejoice
  3. to have a great time
  4. to make fun of sb
4 就 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 着 zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: 就 jiù ... 也 yě ...) even if ... still ...
  12. (pattern: 不 bù ... 就 jiù ...) if not ... then must be ...
=5 行 háng
  1. (bound form) row; line
  2. (bound form) line of business; trade; profession
  3. (bound form) commercial firm
  4. (bound form) to rank (first, second etc) among one's siblings (by age)
  5. (in data tables) row; (Tw) column
  6. classifier for rows or lines
=5 行 héng used in 道行 dàohéng
=5 行 xíng
  1. (bound form) to walk; to go; to travel
  2. (literary) trip; journey; visit
  3. (bound form) temporary; makeshift
  4. (bound form) current; in circulation
  5. (bound form) to do; to perform
  6. capable; competent
  7. all right; OK!; will do
  8. behavior; conduct (Taiwan pr. xìng)
  9. (literary) about to; soon
=5 行 hàng
  1. (obsolete on its own in Standard Chinese) used in 行行 (“bold; staunch; strong”)
  2. order; rank
  3. used in 樹行子／树行子 (“row of trees”)
  4. used in 行行 (“bold; staunch; strong”)
=6 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=6 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=6 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=6 了 liào unofficial variant of 瞭 liào