我每天往返于家和学校。
wǒ měitiān wǎngfǎn yú jiā hé xuéxiào 。
I go back and forth between home and school every day.
他需要往返于两个城市之间。
tā xūyào wǎngfǎn yú liǎng gè chéngshì zhījiān 。
He needs to go back and forth between two cities.
往返的票比单程票便宜。
wǎngfǎn de piào bǐ dānchéngpiào piányí 。
Round-trip tickets are cheaper than one-way tickets.