4 sentences

1. 他无声地走进了房间。

   tā wú​shēng de zǒu​jìn le fáng​jiān.

   He entered the room silently.

   Source: Dong Chinese Dictionary

2. 我讨厌无声电影。

   wǒ tǎo​yàn wú​shēng diàn​yǐng.

   I hate silent movies.

   Source: Tatoeba

3. 这个项目正在无声无臭地进行着。

   zhè​gè xiàng​mù zhèng​zài wú​shēng wú xiù de jìn​xíng zhe.

   This project is proceeding quietly and without any fanfare.

   Source: Dong Chinese Dictionary

4. 那个玻璃杯掉在厚厚的地毯上，落地无声。

   nà​gè bō​li​bēi diào zài hòu hòu de dì​tǎn shàng, luò​dì wú​shēng.

   The glass fell onto the thick carpet and landed without a sound.

   Source: Dong Chinese Dictionary