3 sentences

1. 开启与星际舰队总部的通信频道。

   kāi​qǐ yǔ xīng​jì jiàn​duì zǒng​bù de tōng​xìn pín​dào.

   Open a channel to Starfleet Headquarters.

   Source: OpenSubtitles

2. 星际旅行一直是科幻小说的热门题材。

   xīng​jì lǚ​xíng yī​zhí shì kē​huàn xiǎo​shuō de rè​mén tí​cái.

   Interstellar travel has always been a popular theme in science fiction.

   Source: Dong Chinese Dictionary

3. 绝地武士在星际战争中扮演了关键角色。

   jué​dì wǔ​shì zài xīng​jì zhàn​zhēng zhōng bàn​yǎn le guān​jiàn jué​sè.

   Jedi Knights played a key role in the intergalactic war.

   Source: Dong Chinese Dictionary