1 sentence for 往返 (wǎng​fǎn — to go back and forth)

1. 高速列车定期往返于法国与瑞士之间。

   gāo​sù liè​chē dìng​qī wǎng​fǎn yú fǎ​guó yǔ ruì​shì zhī​jiān.

   The high speed trains travel between France and Switzerland regularly.

   Source: CCMatrix