英语语法分析

Someone used a bulldozer and plowed a two-foot-deep gash in the desert, unearthing the brick and bitumen remains of a stairway.

有人用推土机在沙漠里犁了一个两英尺深的瓦斯，挖出了楼梯的砖头和沥青残骸。

I'm surprised it wasn't mounted on a block of bitumen.

我很奇怪，为什么不把畸形鱼作为标本放在一块沥青架子上。

The method involves a piece of copper covered with light sensitive bitumen.

该方法用到一片铜片，上面用光敏感的沥青覆盖。