2 sentences

1. 清脆的泉水叮咚地流下山脚。

   qīng​cuì de quán​shuǐ dīng​dōng de liú​xià shān​jiǎo.

   The clear spring water flows gurgling down to the foot of the mountain.

   Source: Dong Chinese Dictionary

2. 门铃叮咚响了一声，大概是快递员到了。

   mén​líng dīng​dōng xiǎng le yī shēng, dà​gài shì kuài​dì​yuán dào le.

   The doorbell chimed; it's probably the courier.

   Source: Dong Chinese Dictionary