An exposed concrete body with flagged surface forms the center of the house.

一个暴露的带有铺石板的混凝土躯干是住宅的中心。

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"You would basically render extinct all surface forms of life, " Tyson said. "But it may be that subterranean life is … immune to this kind of violence in the universe.

泰森说：“你会认为它将灭绝表面上的一切生物形式，或许宇宙中有不名生物对它有免疫力。”

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By describing the surface forms and underlying bone structure and how they work together to permit movement, the DVD is useful for teaching sculpture as well as figure drawing.

通过描述表面形式和基本骨骼结构，以及它们如何一起工作，使运动，DVD是有益的教学雕塑以及数字绘图。

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"Well,one of the things that's interesting about these flexible sheets is that they can be curved, so you could imagine putting them in unconventional forms, like on the surface of a vehicle or something like that, where you don't have a flat surface."

VOA: standard.2010.02.19

According to a new computer model, liquid methane in contact with a partially hydrogen-terminated diamond surface at extremely high pressures and temperatures spontaneously forms longer hydrocarbons, and hence the material of crude oil could be formed deep in the earth.

FORBES: Deep Oil From Diamonds? Maybe, Says A New Report

The ice then melts, leaving a space below the surface, which caves in under the stress of vehicles and eventually forms a pothole.

BBC: Jetpatchers at work

Because most of the peninsula sits on a limestone shelf, there are no surface rivers, and rainwater quickly seeps underground where it gathers and forms subterranean bodies of water known as cenotes.

CNN: 3 undeniable reasons to explore Mexico