doitn.荷兰古代小铜币；几文钱；价值甚微之物dov.做；干n.注意事项；<非正式>聚会；<古>事情Do you enjoy the tour?磁盘驻留操作系统Do cry away their gloom.这样哭散阴郁。Do you have ice cream?转盘式静电喷涂机do justice to sb's ability这个磁盘不适合作为系统盘Do not miss the lecture.别错过演讲。doppler-echocardiography超声心动图Doppler coherent detection多普勒相干检测Do you cough at night?磁盘操作系统生成Do you want a receipt?随书光盘Doppler mapping technology多普勒成像技术