moan

手术后，她因疼痛忍不住轻声呻吟。

After the surgery, she couldn't help but ___moan softly from the pain.

员工经常抱怨工作量而不提供解决方案。

Employees often ___moan about their workload without offering solutions.

当护士碰到淤青处时，她忍不住痛得呻吟起来。

She couldn't help but ___moan in pain when the nurse touched the bruised area.