The body was hidden beneath a thin layer of soil.

尸体被埋藏在薄薄的一层土下面。

《牛津词典》

When a layer is hidden, the connectors that connect shapes inside the layer to shapes outside the layer are also hidden.

当一个层被隐藏起来时，层中形状与层外形状之间的联系也会被隐藏起来。

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These underlying data access calls are thus consolidated in the data access layer and hidden from the business logic.

这些底层数据调用整合到数据访问层中，对于业务逻辑是不可见的。

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There is an input layer, an output layer, and sandwiched between them a so-called hidden layer.

ECONOMIST: Machine vision

Ultimately, FoodMood helps reveal a hidden layer of digital and social data that pushes the boundaries of awareness and understanding of our surroundings one step further.

FORBES: Connect