足弓结构

Arch structure

以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译

1
在坦桑尼亚Laetoli所发现的神秘的足印说明古猿在370万年前可能具有足弓结构。
Mysterious footprints left at Laetoli in Tanzania show that a hominin of this time, 3.7 million years ago, did indeed have arches in its feet.
2
这个骨头也说明南方古猿已经抛弃了猿所具有的用于攀爬树枝的柔韧的足中段结构，由于足弓结构的出现，直立行走变得更有效率。
The bone also shows that A. afarensis had abandoned the flexible midfoot that apes use to grasp tree branches, in favor of an arch that makes upright walking more efficient.

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