英语语法分析

When upper endoscopy and colonoscopy are both unrevealing, evaluation of the small bowel is indicated.

当上消化道内窥镜和结肠镜均无发现，小肠检查具有指征。

We present a report of a diabetic patient with an infection of his left thumb and thenar eminence. Standard cultures of drainage and tissue biopsy were unrevealing.

我们报告了一位糖尿病病人的左手拇指和鱼际发生了感染，标准的细菌培养和组织活检都不能找出病原体。