| 单词 | colonoscopy |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔perforation〕One possible complication of colonoscopy is a perforation through the bowel wall that could require surgery.结肠镜检查的一个可能的并发症是大肠穿孔，必须靠手术解决。剑桥高阶 |
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