时差N小时 你的手上有老茧吗?(上)

Most of us are familiar with calluses.

对于“老茧”，我们都很熟悉。

These extra-tough patches of skin are generally quite useful-we might even say handy-because they act likea kind of natural armor,

这些皮肤上突出的硬皮是很有用的，也可以说是方便，

protecting areas of skin that get an unusual amount of wear and tear.

因为他们扮演着保护常磨损皮肤的天然盔甲的角色。

Have you ever wondered exactly what a callus is, or how it forms on your skin?

你是否思考过什么是老茧?他又是怎样形成的?

Callus formation is triggered by pressure or abrasion¹.

老茧是由压力和摩擦而形成。

The heel of your foot as it rubs inside your shoe, or the palm of your hand if you're doing a lot of manual labor² are good examples of this.

脚后跟的茧是由其在鞋里摩擦而形成，正如手茧是在大量的劳动过程中形成。

While it might feel like a callus is something extra, added to your skin, it's actually just a build-up of what's already there.

尽管看起来似乎是皮肤上多出的部分，然而事实是已经存在的皮肤角质的累积。

Here is our words: your skin has a number of layers of different types of cells.

我们是这么说的：皮肤是由若干层不同类型的皮肤构成。

1 abrasion   

n.磨（擦）破，表面磨损

参考例句：

• Diamonds have extreme resistance to abrasion.钻石极抗磨损。
• This analysis is helpful to the research of derailment and abrasion machenism.该分析有助于脱轨和磨耗机理的探讨。

2 labor   

n.劳动，努力，工作，劳工；分娩；vi.劳动，努力，苦干；vt.详细分析；麻烦

参考例句：

• We are never late in satisfying him for his labor.我们从不延误付给他劳动报酬。
• He was completely spent after two weeks of hard labor.艰苦劳动两周后，他已经疲惫不堪了。