医生用特殊工具在头骨上钻孔以排出积液。

The doctor used a special tool to ___trepan the skull and drain the fluid buildup.

那个骗子精心设计了一个骗局，成功诈骗了老太太的全部积蓄。

The scammer ___defrauded the old lady out of her life savings with an elaborate scheme.