4 sentences

1. 他已经麻醉好准备手术了。

   tā yǐ​jīng má​zuì hǎo zhǔn​bèi shǒu​shù le.

   He's already sedated for surgery.

   Source: OpenSubtitles

2. 医生在手术前对他进行了局部麻醉。

   yī​shēng zài shǒu​shù qián duì tā jìn​xíng le jú​bù má​zuì.

   The doctor gave him a local anesthetic before the surgery.

   Source: Dong Chinese Dictionary

3. 医生在手术前给病人进行了局部麻醉。

   yī​shēng zài shǒu​shù qián gěi bìng​rén jìn​xíng le jú​bù má​zuì.

   The doctor performed local anesthesia on the patient before the surgery.

   Source: Dong Chinese Dictionary

4. 他总是试图用酒精来麻醉自己，逃避生活的压力。

   tā zǒng​shì shì​tú yòng jiǔ​jīng lái má​zuì zì​jǐ, táo​bì shēng​huó de yā​lì.

   He always tries to numb himself with alcohol to escape the pressures of life.

   Source: Dong Chinese Dictionary