名词 quadruplet:

1. the cardinal number that is the sum of three and one

2. one of four children born at the same time from the same pregnancy

3. a set of four similar things considered as a unit

quadrupleadj.四倍的；四部分的；[音]四节拍的n.四倍v.成四倍quadruplex house四联式住宅quadruple burner四头灯Quadruple magnet四极透镜quadruple thread四线螺纹quadruple treaty四国条约quadruple charge四柱装药quadruple formex四轨录音磁带quadruple switch四连开关quadruple camera四镜头照相机quadruple tariff四重税则

1. She announced that his wife had just given birth to quadruplets.
   她宣称他的妻子刚刚生了四胞胎。
2. In theory it is possible to make triplets,quadruplets and more by the same way.
   从理论上讲，同样的方法可产生三胞胎、四胞胎或更多。