1. Aeroplanes are slowly driving me mad.
    飞机真要把我逼疯啦！

2. Aeroplanes are slowly driving me mad.
    飞机正在逐渐把我逼疯。

3. She was badly savaged by a mad dog.
    她让疯狗咬得伤势很重.

4. Mad Cow Disease (BSE) in cattle, salmonella in chicken and eggs, and listeria in dairy products.
    牛肉中的疯牛病，鸡肉和鸡蛋中的沙门氏菌，奶制品中的利斯特杆菌。

5. I don´t really want to interfere with your business, but you shouldn´t spending money like mad.
    我不是真想干涉你的事, 但是你不应该在疯狂地花钱.