3 sentences

1. 明天的首发投手是谁？

   míng​tiān de shǒu​fā tóu​shǒu shì shéi?

   Who is the starting pitcher tomorrow?

   Source: OpenSubtitles

2. 这款新款手机今日在上海举行了全球首发。

   zhèi kuǎn xīn​kuǎn shǒu​jī jīn​rì zài Shàng​hǎi jǔ​xíng le quán​qiú shǒu​fā.

   This new phone had its global launch in Shanghai today.

   Source: Dong Chinese Dictionary

3. 这部新话剧的首发演出吸引了成千上万的观众。

   zhè bù xīn huà​jù de shǒu​fā yǎn​chū xī​yǐn le chéng​qiān​shàng​wàn de guān​zhòng.

   The premiere of this new play attracted thousands of spectators.

   Source: Dong Chinese Dictionary