3 sentences

1. 他用木椎轻轻敲击着乐器。

   tā yòng mù chuí qīng​qīng qiāo​jī zhe yuè​qì.

   He tapped the musical instrument gently with a wooden mallet.

   Source: Dong Chinese Dictionary

2. 他飞快地在键盘上敲击着代码。

   tā fēi​kuài de zài jiàn​pán shàng qiāo​jī zhe dài​mǎ.

   He was typing code rapidly on the keyboard.

   Source: Dong Chinese Dictionary

3. 雨点不停地敲击着窗户。

   yǔ​diǎn bù​tíng de qiāo​jī zhe chuāng​hu.

   Raindrops were drumming against the window.

   Source: Dong Chinese Dictionary