11.   But even slightly porous material sheds water when pulled tight and placed at an angle.

a. + material >>共 922
nuclear 4.99%
radioactive 4.13%
building 4.10%
new 3.77%
hazardous 3.53%
genetic 2.61%
bomb-making 1.24%
explosive 1.07%
reading 1.07%
educational 1.05%
porous 0.09%
porous + n. >>共 106
border 32.32%
defense 11.59%
material 3.35%
rock 3.05%
surface 3.05%
frontier 2.74%
silicon 2.13%
soil 2.13%
line 1.22%
asphalt 0.91%
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