yī shēng / jiàn yì / tā / zuò / jié cháng jìng jiǎn chá / yǐ biàn / jìn yī bù / liǎo jiě / fù tòng / de / yuán yīn

医生建议他做结肠镜检查，以便进一步了解腹痛的原因。

The doctor recommended that he undergo a colonoscopy to learn more about the cause of his abdominal pain.