两部灰色楼梯在表皮下凿出狭长的开口——一部形成入口而另一部作为出口。
Two grey concrete staircases are slotted in behind the cladding - one forms the entrance and the other functions as the exit route.
水生环境下的藓类植物，细胞胞壁薄，表皮细胞排列不紧密，茎皮部无内外皮部分化。
Compared with xeric and shady mosses, the aquatic mosses had thin cell walls, the loosely arrayed epidermis cells, and no differentiation of cortex.
穿在我们最外面的，常常是很薄很花巧的衣服，那只是我们的表皮，或者说，假皮肤，并不是我们的生命的一部分，这里那里剥下来也并不是致命伤；
Our outside and often thin and fanciful clothes are our epidermis, or false skin, which partakes not of our life, and may be stripped off here and there without fatal injury;
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