ball of thumb

• 鱼际

ball of thumb的用法和样例：

例句

1. 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。