2 sentences

1. 海运通常比空运更便宜。

   hǎi​yùn tōng​cháng bǐ kōng​yùn gèng pián​yi.

   Sea freight is usually cheaper than air freight.

   Source: Dong Chinese Dictionary

2. 这批通过海运发送的货运已经顺利抵达了目的地。

   zhè pī tōng​guò hǎi​yùn fā​sòng de huò​yùn yǐ​jīng shùn​lì dǐ​dá le mù​dì​dì.

   This shipment sent by sea has arrived safely at its destination.

   Source: Dong Chinese Dictionary