这座A字形小屋的屋顶设计能有效排雪。

The ___A-frame cottage's roof design helps snow slide off easily.

这辆卡车的A型车架非常坚固，能承受重载。

The truck's ___A-frame is extremely sturdy and can handle heavy loads.

这座A字形小屋的陡峭屋顶设计防止了积雪在顶部堆积。

The steep roof of this ___A-frame cabin prevents snow from accumulating on top.