2 sentences

1. 他亲眼目睹了那场车祸的发生。

   tā qīn​yǎn mù​dǔ le nà cháng chē​huò de fā​shēng.

   He witnessed the car accident with his own eyes.

   Source: Dong Chinese Dictionary

2. 他曾目睹这扇门外上演帮派火拼。

   tā céng mù​dǔ zhè shàn mén wài shàng​yǎn bāng​pài huǒ​pīn.

   He'd watched gangs wage war outside this very door.

   Source: OpenSubtitles