enough的固定搭配和用法

例如：I have enough money to buy this car.
He is clever enough to work out the math problem.
He ran fast enough to catch up with my bike.
Enoughhasbeensaidonthissubject.关于这一问题说得已经足够多的了。No,thanks.I'vehadenough.不，谢谢。我已吃饱了。(enough=enoughfood)