2 sentences for 酸 (suān — aching)

1. 我全身都酸痛。

   wǒ quán​shēn dōu suān​tòng.

   I ache all over.

   Source: OpenSubtitles

2. 背部疼痛和肌肉酸痛，通常在2天内消失。

   bèi​bù téng​tòng hé jī​ròu suān​tòng, tōng​cháng zài2 tiān nèi xiāo​shī.

   Back pain and muscle aches usually go away within two days.

   Source: CCMatrix