而弃荒土地地表细颗粒物质散失迅速，民勤盆地弃荒土地地表粘土含量仅存不到13.9%。
The tiny particles on the surface of abandoned land can be blown away easily and rapidly, so the content of clay particles in Minqin Basin is less than 13.9%.
在这里，我学到了我的第一课：虽然我不擅长语言，但我仍然可以很聪明，用粘土很好地表达自己。
Here I learned my first important lesson: disabled as I was in language, I could still be smart and well express myself with clay.
河岸边经常也有粘土，大约在离地表1米或更少的地方。
River Banks often also have clay about 1 meter or less under the surface.
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