On the condition of thermal contact metamorphism, clay minerals in coal are changed into andalusite.无烟煤中红柱石是煤中粘土质矿物经热接触变质作用形成的.A paper bird cannot stand the strong wind, and a clay figurine cannot bear the heavy rain.纸鸟经...
It's a penknife, scissors, corkscrew all rolled into one.这集小折刀 、 剪刀和螺丝起子于一身.They pause and corkscrew in our vicinity for years before moving along.在继续前进之前它们暂时留了下来在我们附近盘旋了几年.I want to perm my hair very curly like cor...