He was not much acquainted with valves of any sort, but he knew that valvae were folding-doors, and through this crevice came a sudden light startling him with his first vivid notion of finely adjusted mechanism in the human frame.
对任何类型的阀门都不是很了,知道阀门是折门,从这个缝隙射出一道光,第一次生动地想到人体结构的精密调整机制让大吃一惊。