https://www.bilibili.com/video/BV1HV411J7uE
TRUE!—nervous—very, very dreadfully nervous I had been and am; but why will you say that I am mad? The disease had sharpened my senses—not destroyed—not dulled them.
dull:
to become or be made weaker or less severe
The tablets they gave him dulled the pain for a while.
Above all was the sense of hearing acute.
acute: adjective
very sensitive and well developed 灵敏的 SYN keen
Dogs have an acute sense of smell.
I heard all things in the heaven and in the earth. I heard many things in hell. How, then, am I mad? Hearken! and observe how healthily—how calmly I can tell you the whole story.
It is impossible to say how first the idea entered my brain; but once conceived, it haunted me day and night. Object1 there was none. Passion there was none. I loved the old man. He had never wronged me. He had never given me insult. For his gold I had no desire. I think it was his eye! yes, it was this! One of his eyes resembled that of a vulture—a pale blue eye, with a film over it.
a thin layer of sth, usually on the surface of sth else SYN: coat, coating, layer
Everything was covered in a film of dust.
Whenever it fell upon me, my blood ran cold; and so by degrees—very gradually—I made up my mind to take the life of the old man, and thus rid2 myself of the eye for ever.