A tattoo is a permanent mark or design made on your skin with pigments inserted through pricks into the skin's top layer.

纹身其实就是用带有颜料的针刺工具在皮肤的表皮层留下的永久记号或图案。

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This paper proposes a design method of communication platform, which is divided into two layers, bottom is communication layer and top is communication proxy layer.

文章提出了一种分层式的通信平台设计方法，即将通信平台分为通信底层和通信代理层。

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Focused on the hardware design of the fibre channel link layer, this paper applied modularization thinking in the top-down design process, with relevant IP core interfaces.

以模块化的方式采用自顶向下的设计思路，重点阐述了光纤通道链路层的硬件设计方法，并给出了IP核的相关接口。

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Design for Internet companies is often thought of as just a top layer of pretty paint, but Facebook and other start-ups are integrating design as an integral part of their overall strategy.

FORBES: Design For Facebook, Mint, Posterous Not Just Pretty Pixels