進食前先洗手。

Wash your hands before eating.

Source: Tatoeba

Sentence Composition

1 進食 jìnshí to eat one's meal
2 前 qián
  1. front
  2. forward
  3. ahead
  4. first
  5. top (followed by a number)
  6. future
  7. ago
  8. before
  9. BC (e.g. 前293年)
  10. former
  11. formerly
=3 先 xiān
  1. beforehand; first; earlier
  2. at first; originally
  3. for the time being; for now
  4. (prefix) my late (in referring to deceased relatives older than oneself)
=3 先 xiǎn only used in 先馬／先马
4 洗手 xǐshǒu
  1. to wash one's hands
  2. to go to the toilet