His belief in the existence of a mysterious abyss, into which the suspended floor of the Valley and all the domes and battlements of the walls might at any moment go roaring down, mightily troubled him.

他相信存在一个神秘的深渊，山谷的悬空地板和墙壁的所有圆顶和城垛随时可能咆哮而下，这让他非常困扰。