With the roof caving in, there were an increasing number of desertions.
由于大势已去, 逃兵的人数日益增多.
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Some residents are concerned about their roofs caving in.
一些担心他们的房顶有塌陷的危险.
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Politically, however, they cannot afford to be seen as caving in to foreign pressure.
不过, 在政治上, 他们承担不起被视为屈从外国压力的代价.
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The horizontal section top coal caving in steep seam is different from the gently inclined seam.
急斜煤层水平分段放顶煤开采与缓斜煤层不同,工作面沿煤层厚度的水平线布置,长度短.
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