A flexible fiber-optic instrument used to view an object or area, such as a body cavity, that would otherwise be inaccessible.
纤维镜利用光学纤维制成的一种韧性仪器, 用于对一些用其它方法无法接近的物体或区域(如体腔)进行检查
The cave is inaccessible, high up the top of a cliff which no one can climb.
那个洞穴在没人能爬的高耸的悬崖顶上, 无法进入。
His busy schedule made him completely inaccessible to his students.
他的时间排得很满, 学生根本无法和他接触。