4 sentences

1. 这艘新客轮开始了它的处女航。

   zhè sōu xīn kè​lún kāi​shǐ le tā de chǔ​nǚ háng.

   The new passenger ship began its maiden voyage.

   Source: Dong Chinese Dictionary

2. 这艘万吨巨轮今天圆满完成了首航。

   zhè sōu wàn dūn jù​lún jīn​tiān yuán​mǎn wán​chéng le shǒu háng.

   This ten-thousand-ton vessel successfully completed its maiden voyage today.

   Source: Dong Chinese Dictionary

3. 这艘货轮在茫茫大海中正奋力向东航。

   zhè sōu huò​lún zài máng​máng dà​hǎi zhōng zhèng fèn​lì xiàng dōng háng.

   The freighter is laboring eastward through the vast ocean.

   Source: Dong Chinese Dictionary

4. 这次航天任务取得了史无前例的成功。

   zhè cì háng tiān rèn​wu qǔ​dé le shǐ​wú​qián​lì de chéng​gōng.

   This space mission was an unprecedented success.

   Source: Dong Chinese Dictionary