A2 as much as is necessary; in the amount or to the degree needed充分；充足
B2 as much as or more than is wanted足够；过多
something you say when you want something to stop够了，行了，适可而止
something you say to tell someone that you understand what they have said and that there is no need to say any more不必再讲，无需多说
C1 to want something to stop because it is annoying you受够了；烦透了；再也无法忍受了
used to tell someone to stop behaving badly不要那样，够了（用于制止不好的行为）
My concern is that you're not getting enough work done.
There isn't enough contact between teachers and parents.
He didn't allow us enough time to finish the test.
Are there enough pencils for everyone?
I hadn't had enough sleep and was feeling a bit grumpy.
A2 used after an adjective, adverb, or verb to mean to the necessary degree（用于形容词、副词或动词后）足够地
used after an adjective or adverb to mean quite很，十分（用于形容词、副词后）
You don't chew your food enough - that's why you get indigestion.
We're not doing enough to protect the environment from pollution.
You won't be warm enough in that flimsy dress.
Barry seems happy enough working for himself.
Will the rope be strong enough to hold my weight?