10.A closer look revealed that they weren't the first people to enter the space, as someone had gathered millions of shells from cockles, whelks, oysters, mussels, and other mollusks and glued them to the walls.
仔细观察就会发现, 他们并不是第一批进入该空间的人,因为有人从鸟蛤、海螺、牡蛎、贻贝和其他软体动物身上收集了数百万个贝壳, 并将它们粘在墙上。机翻