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.
任何类型的阀门都不是很了解,但知道阀门是折门,从这个缝隙中突然射出道光,第次生动地体结构中的精密调整机制让大吃惊。