单词	开关元件
释义	开关元件医on-off element
随便看	single-occupancy single occupancy building single-occupancy room single-occupancy supplement single octademaleate single-octet single offender single office area single office exchange single-office exchange single-office system single offset single-offset joint single-offset parabolic reflector antenna single offspring mental health single oil area single oil well measuring single one Single one-side cable-stayed bridge single one-step method single one-step operation single-ontology single oocyst Single-oocyst single oocyst isolation