double-duty的用法和样例：
词汇搭配
- double duty 双重任务
- double-duty lube truck 两用润滑油运输货车...
- double-duty plant 两用设备
- double duty regulator 双作用调节器...
- double duty truck 两用货车
- double-duty regulator 双作用调节器...
- do double duty 做双份工作; 兼做两...
double-duty的相关资料：
临近单词
doubleknit
double
double heads compressive hollow screw
double-leg sitting tailor-fashion
double tracer radioimmunoassay method
double-focusing mass-spectrograph
double-wavelength spectrophotometry
double grip retrievable casing packer
Double-negative dielectric material
double-edged reversible flail knife
double-direction observation method
double-layer and insulated pipeline
