2 sentences for 深沉 (shēn​chén — low-pitched)

1. 她的嗓音出乎意外的深沉。

   tā de sǎng​yīn chū​hū​yì​wài de shēn​chén.

   Her voice was surprisingly deep.

   Source: CCMatrix

2. 电话里的声音是深沉而熟悉的。

   diàn​huà li de shēng​yīn shì shēn​chén ér shú​xī de.

   The voice on the phone was deep and familiar.

   Source: CCMatrix