colin-sand的用法和樣例：
例句
- The Aeolian sand is the most abundant material in the desert area, but its engineering property is so bad that it has not been used widely as paving material.
風(fēng)積沙是沙漠地區最為豐富的物質(zhì)，由于其工程性質(zhì)較差，目前仍未被廣泛用作沙漠地區公路的鋪筑材料。 - Accumulating sand can lead to great pressure on top of the grottoes and ponding in the rock mass.
積沙還能造成窟頂巨大壓力和巖體積水。
