1·Once a bear went down, they landed and collected a sample directly from its rectum.
只要北极熊倒下了，他们就能登陆，直接从北极熊的直肠采取样本。
2·Although it was successful, the doctor said his cancer had spread to areas close to the rectum, so he had to undergo chemotherapy.
尽管手术很成功，但医生说他的癌症已经扩散到邻近直肠的区域，所以他必须接受化疗。
3·In some cases, the rectum is damaged and stool leaks out.
有些病例直肠受损，粪便会持续泄漏出来。
4·You may rage and rant about the fixation with the rectum, but the results are there for all to see by the time you leave.
您可能会对直肠固定发怒责骂，但是当你结束疗程准备离开时，疗效可是有目共睹的啊。
5·Usually, the remaining colon can then be joined to the rectum.
通常情况下，结肠的剩余部分就会和直肠连接在一起。