1、 This led to the construction of earthen or stone steps,arranging the audience into a semicircle in front of the speaker.
这导致了泥土阶或石阶的建构，安排观众们面对讲演者坐成一个半圆形。
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2、 In the largest Dallas communities, some individuals were buried in the earthen mounds that served as sub-structures for buildings important to civic and religious affairs.
在达拉斯最大的社区中，一些人被埋在土堆中，这些土堆是对市政和宗教事务很重要的建筑物的子结构。
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