A device is an object that has been invented for a particular purpose, for example, for recording or measuring something.
近义词
machine , instrument , gadget
双语例句
例： the electronic device that tells the starter when an athlete has moved from his blocks prematurely.
能在运动员抢跑时通知发令员的电子仪器。
例： An explosive device had been left inside a container.
一个爆炸装置已经被留在一个容器里。