来无影，去无踪
lái​wú​yǐng​qù​wú​zōng

to come and go without a trace

  1. 来 來 lái verb
    to come
    To come; to arrive; to move toward the speaker; to crop up or happen
  2. 无 無 wú adjectiveverb
    to not have
    to not have; there is no; lack; (as prefix) non-; un-; -less
  3. 影 yǐng adjectivenoun
    trace
    (bound form) trace; vague impression; sign
  4. ， qù
    non-Chinese
  5. 去 qù verb
    to go
    to go to a place; to leave or depart; to go in order to do something
  6. 无 無 wú adjectiveverb
    to not have
    to not have; there is no; lack; (as prefix) non-; un-; -less
  7. 踪 蹤 zōng noun
    footprint
    (bound form) footprint; trace; track; marks left by an action or movement