猫是上楼还是下楼？答案揭晓_BEC初级作文

猫是上楼还是下楼？答案揭晓

另外，如果仔细观察，你甚至还能在伸出梯面的收边条下方看到浅浅的阴影。只有当这只猫正在下楼，走向看向楼梯上方的观察者时，阴影才有可能出现。光线从上一级平台照射下来，在梯级竖板上投射下梯面的阴影。

One Redditor suggested that what we're seeing are stair grips — not a stair nose — to keep people from slipping. But that would mean the stair grip would be ever-so-slightly raised (we know this because of the shadows), which would be extremely dangerous — people (and cats) would be tripping all the time.

社交资讯站点Reddit上的一名用户认为，我们看到的不是收边条，而是梯面上的防滑条，是为防止人们滑倒而设计。但这就意味着这些防滑条必须具有一定高度（从阴影来看），如此一来，这个楼梯就会变得极其危险——人（和猫）都会常常被绊倒。

Then there's this comment from Business Insider reader fred-sof: "The cemented in brick/stone in the side walls are placed in and on top of the step landings, they are the light grey brick shape items in the side walls."

商业资讯网站Business Insider用户fred-sof则评论道："侧边墙上用砖块或石块砌成的水泥块一般位于楼梯平台内部或上方，就是侧边墙上那些浅灰色砖块形状的东西。"

What he means is that bricks or stones are typically placed on top of step treads to build up the wall surrounding the stairs. Here's what that looks like in real life: