钻石抛光机销售:look.the____are fat,but the_____are thin.

look.the____are fat,but the_____are thin. LOOK~！~！~！ look^look^^^^^^^^ look^look^^^^^^^^ look look!~~~~ 帮我LOOK LOOK LOOK LOOK吧！函数 fat是什么意思？ fat是什么意思? FAT是什么意思？