The front face of a building or its principal elevation.

建筑物的正面或主要立面。

A deceptive outward appearance that conceals a less pleasant reality.

用来掩饰真实情况的虚假外表或门面。

The visible front or surface of something, viewed as its face.

事物的可见正面或表面。

A design pattern that provides a simple interface to a complex subsystem.

一种为复杂子系统提供简化接口的设计模式。