I have a pain in the lower abdomen.

我的腹部有点隐痛。

youdao

Since the muscles in the abdomen and lower back play an important role in preventing collapse, move the navel toward the spine and lift the sacrum away from the lumbar spine.

此过程中，腹部和下背部肌肉的作用非常重要，所以你需要将肚脐内收，同时把骶骨向上提。

youdao

If the pain is severe and concentrated on the lower right side of their abdomen, it could be appendicitis.

要是疼得厉害并且集中在腹部右下方，可能是阑尾炎。

youdao

Harry was pierced by shrapnel in the lower abdomen region but survived.

BBC: Somerset - In Profile: Harry Patch

You slide a small camera a laparoscope into the abdomen through a quarter-inch incision near the belly button, insert a long grasper through an incision beneath the waistline, and push a device for stapling and cutting through an incision in the left lower abdomen.

NEWYORKER: Personal Best

For office workers who spend a lot of time sitting, Klion recommends postural exercises to strengthen the abdomen and lower back, as well as upper back and shoulder strengthening.

FORBES: Health