低头不见抬头见
dī​tóu​bù​jiàn​tái​tóu​jiàn

to cross paths regularly

  1. 低头 低頭 dī​tóu verb + noun
    to bow one's head
    To lower or hang one's head, as when thinking or due to shyness
  2. 不见 不見 bù​jiàn verb
    not to see
    not to see; not to meet; to not see each other
  3. 抬头 抬頭 tái​tóu verb + noun
    to raise one's head
    to raise one's head; to look up
  4. 见 見 jiàn verb
    to see
    to see; to catch sight of; to perceive visually