It was a small circular hole in the floor about four centimetres in diameter.

那是地板上一个直径约四厘米的小圆洞。

However, looking at the zenith directly overhead, I thought I caught sight of a feeble glimmer, a sort of twilight filtering through a circular hole.

同时我注视空中的顶点，正在我的头上面，我觉得是看到一种隐约浮游的微光，一称在圆涧中所有的曙光。

" Correct, " said the Fat Lady, and her portrait swung open towards them like a door, revealing a circular hole in the wall behind, through which Harry and Neville now climbed.

“正确，”胖大婶说道，她的肖像象一扇门一样移开了，在后面的墙上出现了一个圆形的洞，现在哈利和纳威可以爬过去了。

It's made from the stuff of microchips: silicon, a layer of silicon dioxide, and on top a very thin film of silicon nitride, which is perforated by a grid of microscopic circular holes.

硅、二氧化硅层以及最上层非常薄的氮化硅薄膜，而这层薄膜被打上排成网格状的微小圆孔。

Siobhan has long, blonde hair and wears glasses which are made of green plastic; and Mr. Jeavons smells of soap and wears brown shoes that have approximately 60 tiny, circular holes in each of them.

Siobhan 有一头金色的长发， 戴着一副绿色塑料眼镜；杰文斯先生身上散发着肥皂味， 穿着棕色的鞋子， 每只鞋子上都有大约 60 个圆形的小孔。