Fat作为名词时，意思是脂肪、脂肪、肥肉、动植物油。fat作为形容词时，意思是肥胖的、肥的、厚的、宽大的、大量的、值钱的。fat作为动词时，意思是养肥、增肥。fat的第三人称单数是fats，fat的复数是fats。

　　Fat的例句：You'll get fat if you eat so much chocolate.你如果吃这么多巧克力就会发胖的。He grew fatter and fatter.他愈来愈胖了。

　　He gave me a nice fat cheque.他给了我一张大额支票。Fatness tends to run in families.肥胖往往有遗传性。This ham has too much fat on it.这块火腿肥肉太多。

　　Paul can't drive so he was a fat lot of use when I broke my arm.保罗不会开车，所以我手臂骨折时他一点忙也没帮上。