He pulled the stub of a pencil from behind his ear.他从耳后拿出一小段铅笔头。Fill in gaps by using short, upward strokes of the pencil.用铅笔向上短短地勾画几道来填充空白。He cut his finger while sharpening a pencil.他削铅笔时把手指割破了.The pencil is in the pen...
工人们把这些粗桩子埋置在水泥中.The workers embedded the big posts in concrete.方法采用埋置式种植术对部分磨牙区缺失患者行牙种植修复.Method Perform tooth implantation and restoration on sufferers with partial anodontia in molar area.埋置部位、扩张过程是否住院与并发症发生有关系,并发症种类与成...