outer edge

基本解释

On a planet like that, on the outer edge, you will have reservoirs of life, and there will be habitats that will persist.
在这样一个位于（太阳系可居住区）外缘的星球上，才能保有生命之水，才能维持栖息地。
The crater seems to have exposed two different types of bedrock, the light-toned rock toward the outer edge and the darker rock on the inner edge.
陨坑内部似乎显露出两种不同类型的基岩，即外缘的浅色岩石和内沿的深色岩石。
This little spheroid sports thousands of tiny hairs around the outer edge of its body called cilia that propel it at lightning speeds through freshwater scum.
这个小小的球状体的身体外壳上有着上千条细小的发丝，叫做纤毛，推进它以闪电般的速度穿行于淡水泡沫中。

The gripping appears to disrupt the phone's antenna that spans the phone's outer edge.
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At first glance the space bar appears to be a tad short, but our thumbs never wavered, resting comfortably on its outer edge.
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And the hole's outer edge is roughly where rocky planets, like the inner planets of this solar system (including the earth), are expected to be.
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