2 sentences for 第一个 (dì​yī​gè — the first)

1. 我想成为第一个知道所有事情的人。

   wǒ xiǎng chéng​wéi dì​yī​gè zhī​dào suǒ​yǒu shì​qing de rén.

   I want to be the first to know everything.

   Source: OpenSubtitles

2. 夏启是中国历史上第一个王朝的开创者。

   Xià Qǐ shì Zhōng​guó lì​shǐ​shàng dì​yī​gè wáng​cháo de kāi​chuàng zhě.

   Xia Qi was the founder of the first dynasty in Chinese history.

   Source: Dong Chinese Dictionary