n.蝰蛇；加法器
An adder attacked my father. 一条小毒蛇攻击了我父亲。
The adder is also the only British snake with a poisonous bite. 蝰蛇在英国也是唯一一种有毒的蛇。
The adder has been functionally verified and simulated by using PSPICE. 该加法器已用PSPICE仿真工具进行了功能验证和仿真。
n.阶梯；梯子；梯状物
n.阶梯；梯子；梯状物
n.膀胱；囊；囊状物
加法器
胆瓶
