英语语法分析

These strangely shaped dunes are known as barchan dunes and are common on both Earth and Mars.

形状怪异的沙丘是地球和火星上比较常见的新月沙丘。

It is known for its dramatic dunes, including the crescent-shaped barchan dunes shown here, some of which can reach 100 feet (30 meters) high and 1,200 feet (370 meters) wide.

这里因有着壮观的沙丘而知名，比如图中的这些半月状的弧形沙丘，有些沙丘甚至可高达100英尺(30米)，宽达1,200英尺(370米)。