随着我年纪增长，我经常会感到各种疼痛。

As I get older, I often have ___aches and pains.

我的下背部有些疼痛。

I've got an ___ache in my lower back.

自从那次事故后，我的左腿一直隐隐作痛。

Since the accident, I've had a constant ___ache in my left leg.