1.Afghan politician and former MP Daoud Sultanzai told the BBC that the escape exposes "the porousness of our security apparatus" .
阿富汗政治家，前国会议员达武德桑坦赞告诉BBC记者，越狱暴露出“安全机制的多重漏洞。”
2.The porousness of snow makes it absorb sound.
雪的多孔性使得雪吸收声音。
3.After the first snow, sound is made over again. The porousness of snow makes it absorb sound.
第一场雪后，声音又发生了新的变化。积雪融化深入土壤，使地面吸收声音。