他不想过一种空虚的生活.He didn't want to live an empty life.人类只是在 “ 空虚的永恒中孤独地流浪着 ”.Humanity is left " wandering forlorn among the empty eternities ".他在吸烟喝酒这种空虚的快乐中虚度年华.He wasted his time in the vain pleasures of smoking and dr...
在工业上，金刚石可以用作工具表面坚固、耐腐蚀的覆盖层。In industry, diamond can form a tough, non-corrosive coating for tools.覆盖层屏蔽掉了放射性.Overburden had concealed the radioactivity.覆盖层升高至地表.The confining material rises to the surface....