cascalho的翻译，读音
英/kɑ:'skɑ:ljәj/
释义：
n. (巴西一带含钻石或金的)砂石沉积物
n. A deposit of pebbles, gravel, and ferruginous sand, in
which the Brazilian diamond is usually found.
n. A deposit of pebbles, gravel, and ferruginous sand, in
which the Brazilian diamond is usually found.