to move back and forth; to repeat an action or movement many times

repeatedly; back and forth again and again; often used to describe an action that is performed over and over

A ticket that covers both going to a destination and returning; also known as [[往返票|往返票|wang3 fan3 piao4]] or [[去回票|去回票|qu4 hui2 piao4]] in different regions.

to make a round trip; to go and come back

to make a round trip; to go somewhere and back