覆盖分泌腺的表皮表面光滑，无鳞片和毛状突起。

The epicuticle overlying the gland is smooth and lack of scales.

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例如，艾比特思和名为表皮生长因子受体(EGFR)的细胞表面蛋白的结合。

Erbitux, for example, binds to a cell-surface protein called epidermal growth-factor receptor (EGFR).

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我们许多人只是在步入老年，开始发体之后才看见饮酒习惯对身体产生的表面的变化。 可是过量饮酒还能产生表皮下的伤害。

Many of us only begin to see the visual evidence of our drinking habits as we get older and start to carry excess baggage, but excessive drinking can also take its toll beneath the skin.

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