With this condition, in theory he should have his intestines cleaned (a process also called "intestinal lavage") every three to four days. But this process is both expensive and painful, and Chung-yi sometimes procrastinates.
這種情形，理論上是每三、四天就要洗一次腸，但洗腸又貴又痛苦，忠義總不時拖延逃避著。