来自PIE*skeu, 遮盖，保护，词源同hide, house, custody.

1. The reform has hardly made a scratch upon the cuticle of affairs.

改革几乎还没有触到事物的表皮.

2. The old cuticle is digested by molting fluid.

旧表皮被蜕皮液消化.

3. The'shell " is composed of three structures: the membranes, the mineralized part and the cuticle.

蛋壳 由3种结构组成: 膜, 矿物质化部分和壳胶膜.

4. The outer tangential wall of both surfaces had cuticle.

上下表皮外切向壁上均有角质膜.

5. The oil painting under his brush then becomes a layer of cuticle.

油画,在这里成为一层表皮.