Chinese pronunciation lookup
往返
Said in 2 Chinese podcast lines.
而且听经常往返中日两国的朋友说
Moreover, I've heard from friends who frequently travel between China and Japan.

BeYourself团队【双城记 】vol.14 日本留学|最新日本入境规则是怎样的?新规留学生如何分批
船只要不是往返伊朗港口就不会受到阻碍。
ships will not be hindered as long as they are not traveling to or from Iranian ports.

聽天下:天下雜誌Podcast【天下零時差04.15.26】美軍真能封鎖荷姆茲海峽嗎?對石油市場影響為何?
The shows belong to their publishers, and each line plays from the publisher’s own file. Translations are machine-made. Chinese books and courses on Amazon (affiliate link).