7 sentences

1. 他每天往返于北京和天津之间。

   tā měi tiān wǎng​fǎn yú Běi​jīng hé Tiān​jīn zhī​jiān.

   He commutes between Beijing and Tianjin every day.

   Source: Dong Chinese Dictionary

2. 他经常因为工作关系往返于成渝两地。

   tā jīng​cháng yīn​wèi gōng​zuò guān​xi wǎng​fǎn yú Chéng Yú liǎng dì.

   He often travels back and forth between Chengdu and Chongqing for work.

   Source: Dong Chinese Dictionary

3. 由于工作原因，他需要经常往返于中国和约旦。

   yóu​yú gōng​zuò yuán​yīn, tā xū​yào jīng​cháng wǎng​fǎn yú Zhōng​guó hé Yuē​dàn.

   For work reasons, he needs to travel frequently between China and Jordan.

   Source: Dong Chinese Dictionary

4. 由于干线正在维修，往返两地的客车只能临时绕道。

   yóu​yú gàn​xiàn zhèng​zài wéi​xiū, wǎng​fǎn liǎng dì de kè​chē zhǐ néng lín​shí rào​dào.

   Because the main road is under repair, buses traveling between the two locations have to take a temporary detour.

   Source: Dong Chinese Dictionary

5. 每天都有许多大型货轮通过巴拿马运河往返于两大洋。

   měi tiān dōu yǒu xǔ​duō dà​xíng huò​lún tōng​guò Bā​ná​mǎ yùn​hé wǎng​fǎn yú liǎng dà​yáng.

   Every day, many large cargo ships pass through the Panama Canal, traveling between the two oceans.

   Source: Dong Chinese Dictionary

6. 这里的渡轮每隔半小时就会发出一班，往返于两岸之间。

   zhè​lǐ de dù​lún měi gé bàn xiǎo​shí jiù huì fā​chū yī bān, wǎng​fǎn yú liǎng àn zhī​jiān.

   The ferry here departs every half hour, shuttling back and forth between the two banks.

   Source: Dong Chinese Dictionary

7. 这座新建的大桥横跨江面，极大地缩短了两岸的往返时间。

   zhè zuò xīn​jiàn de Dà Qiáo héng​kuà jiāng​miàn, jí dà de suō​duǎn le liǎng àn de wǎng​fǎn shí​jiān.

   This newly built bridge spans the river, greatly shortening the travel time between the two banks.

   Source: Dong Chinese Dictionary