当夜间气温下降时，沙漠地面上的雨水有可能变成薄冰。
It's possible that rain on the desert floor could turn to thin sheets of ice when temperatures drop at night.
许多沙漠地面转向，庄稼不能生长得非常好。
Many ground turning to desert, crops can not grow very well.
其它部分几乎已被沙土掩埋了，仅仅高出沙漠地面几英尺。
Other parts, nearly covered by sand, rise only a few feet above the desert.
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