plug connection

例句：

1. 1. The powercord is plugged into the wall socket.
   电源线插在墙上的插座上。
2. 2.The computer needs to be plugged infor it to work properly.
   电脑需要插入才能正常工作。
3. 3. The two devices need to beplugged together for them to function correctly.
   这两个设备需要正确连接才能正常工作。