单支红色发光二极管表示电源已接通。A single red LED shows that the power is switched on.按这种方式使用的二极管叫做整流管.A diode used in this manner is called a rectifier.二极管早已作为常规器件应用于多种电路中.The diode is used routinely in many kinds of electronic circuit...
The security services were clearly caught napping.保安工作明显有漏洞。He caught me napping.他发现了我打盹.In it the Indians pass away hot noon hours, napping or chatting.印第安人躺在上面,打发掉了正午几个小时的酷热.时而小憩时而闲聊....