3 sentences

1. 你妹妹有权知晓。

   nǐ mèi​mei yǒu quán zhī​xiǎo.

   Your sister has a right to know.

   Source: OpenSubtitles

2. 万一被她知晓一切该怎么办啊？

   wàn​yī bèi tā zhī​xiǎo yī​qiè gāi zěn​me​bàn a?

   What if she finds out about everything?

   Source: OpenSubtitles

3. 这件事目前只有极少数人知晓。

   zhè jiàn shì mù​qián zhǐ​yǒu jí shǎo​shù rén zhī​xiǎo.

   Currently, only a very few people know about this.

   Source: Dong Chinese Dictionary