Double GST双层GSTdoubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-chamber magazine双腔暗盒double-emitter follower[电] 双射极跟随器double brushless DC motor双无刷直流电动机double-frequency coding双频率编码double economic functions两重经济职能double transit oscillator双渡越空间速调管double squirrelcage motor双鼠笼电动机double absorption pipette双吸收球管double-expansion engine二级膨胀式发动机double-extension method[经] 双重扩展法

1. Under that scenario, your elderly neighbors might suffer a double whammy, with the value of both their home and their bond portfolio getting battered.
   在这种情形下，对你的老夫妇邻居而言可能是祸不单行，其房屋和债券组合的价值均将遭受重挫。