Not allowing light to pass through; not transparent.

• Lacking translucence; visually impenetrable.

不让光线通过；不透明的。

• 缺乏半透明性；视觉上不可穿透。

Difficult to understand; obscure or unclear.

• Hard to interpret or explain.

难以理解；晦涩或不清楚。

• 难以解读或说明。

Computing: having a hidden representation; implementation concealed.

• Accessed only through its defined abstract operations.

计算机：具有隐藏的表示；实现被隐藏。

• 仅能通过其定义的抽象操作访问。

Something opaque; a light-blocking substance or area.

• A region of darkness with no light.

不透明物；阻挡光线的物质或区域。

• 没有光的黑暗区域。

To make or render opaque.

• To reduce transparency or clarity.

使不透明；使变得不清晰。

• 降低透明度或清晰度。