Cascalho
n. (巴西一带含钻石或金的)砂石沉积物
🗣️ 情景例句
Technology may bring breakthroughs to many currently incurable diseases.
科技能给现在无法治愈的疾病带来突破。
To carry dirt
清理垃圾
Last week No.14 Middle School held a sports meeting on the playground.
上星期第十四中学在操场举行了一次运动会。