3 sentences

1. 你已知悉自己的权利。

   nǐ yǐ zhī​xī zì​jǐ de quán​lì.

   You've been advised of your rights.

   Source: OpenSubtitles

2. 我已知悉你的抗议。

   wǒ yǐ zhī​xī nǐ de kàng​yì.

   Your protest has been noted.

   Source: OpenSubtitles

3. 此事关系重大，望一体知悉。

   cǐ shì guān​xi zhòng​dà, wàng yī​tǐ zhī​xī.

   This matter is of great importance; please all take note.

   Source: Dong Chinese Dictionary