來回

来回
láihuí
  1. to make a round trip
  2. return journey
  3. back and forth
  4. to and fro
  5. repeatedly

CEDICT

Entry Composition

1 來 lái
  1. to come
  2. (used as a substitute for a more specific verb)
  3. hither (directional complement for motion toward the speaker, as in 回來 huílai)
  4. ever since (as in 自古以來 zìgǔyǐlái)
  5. for the past (amount of time)
  6. (prefix) the coming ...; the next ... (as in 來世 láishì)
  7. (between two verbs) in order to
  8. (after a round number) approximately
  9. (used after 得 dé to indicate possibility, as in 談得來 tándelái, or after 不 bù to indicate impossibility, as in 吃不來 chībulái)
=2 回 huí
  1. to circle
  2. to go back
  3. to turn around
  4. to answer
  5. to return
  6. to revolve
  7. Hui ethnic group (Chinese Muslims)
  8. time
  9. classifier for acts of a play
  10. section or chapter (of a classic book)
=2 回 huí
  1. to curve
  2. to return
  3. to revolve
=2 回 huí variant of 迴 huí