4 sentences

1. 我会让你全权负责。

   wǒ huì ràng nǐ quán​quán fù​zé.

   I'll give you full authority.

   Source: OpenSubtitles

2. 这件事情该如何处理，由你全权决断。

   zhè jiàn shì​qing gāi rú​hé chǔ​lǐ, yóu nǐ quán​quán jué​duàn.

   How to handle this matter is entirely up to your discretion.

   Source: Dong Chinese Dictionary

3. 公司董事会授权他全权处理这笔交易。

   gōng​sī dǒng​shì​huì shòu​quán tā quán​quán chǔ​lǐ zhè bǐ jiāo​yì.

   The company's board of directors authorized him to handle the transaction with full power.

   Source: Dong Chinese Dictionary

4. 他作为全权代表签署了这项协议。

   tā zuò​wéi quán​quán dài​biǎo qiān​shǔ le zhè xiàng xié​yì.

   He signed the agreement as a plenipotentiary representative.

   Source: Dong Chinese Dictionary