果实成熟时，瓜的外表皮变黄，变硬，果肉成碧绿色，像果冻一样滑溜。
When ripe, the melon has a thick spiky yellow outer skin, with bright green, jelly like flesh.
表皮是叶子表面一种蜡一样的物质，随着叶子生长，因此观察叶子表皮和观察叶子最外层细胞——上皮——基本是一样的。
Cuticle is a waxy substance laid down on the leaf surface as it develops, so looking at leaf cuticle is essentially the same as looking at a leaf's outermost cells - the epidermis.
湿角化蛋白不同于表皮囊肿和皮样囊肿的成熟角化鳞状上皮。
"Wet" keratin is different from the mature (orthokeratotic) keratinous squames seen in epidermoid or dermoid cysts.
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