你的背心前后反了,得翻过来。

You need to reverse your vest, it's back to front.

Source: Tatoeba

Sentence Composition

=1 you (informal, as opposed to courteous nín)
=1 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.)
=2 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
=2 a taxi; a cab (abbr. for 的士 shì)
=2 really and truly
=2 (bound form) bull's-eye; target
3 背心 bèixīn sleeveless garment (vest, waistcoat, singlet, tank top etc)

classifier:

4 前后 qiánhòu
  1. around
  2. from beginning to end
  3. all around
  4. front and rear
=5 fǎn
  1. contrary
  2. in reverse
  3. inside out or upside down
  4. to reverse
  5. to return
  6. to oppose
  7. opposite
  8. against
  9. anti-
  10. to rebel
  11. to use analogy
  12. instead
  13. abbr. for 反切 fǎnqiè phonetic system
=5 fàn
  1. (music) Cantonese opera gongche notation for the note fa (4).
  2. Cantonese opera gongche notation for the note fa (4).
  3. alternative form of / (fàn)
  4. used in 反反
=6 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=6 liǎo
  1. to finish
  2. (used with or after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as or ) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of liǎo)
=6 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=6 liào unofficial variant of liào
=7
  1. to obtain
  2. to get
  3. to gain
  4. to catch (a disease)
  5. proper
  6. suitable
  7. proud
  8. contented
  9. to allow
  10. to permit
  11. ready
  12. finished
=7 used in 得瑟 se
=7 de structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc
=7 děi
  1. to have to
  2. must
  3. ought to
  4. to need to
8 翻过来 fānguòlái
  1. to overturn
  2. to turn upside down