一、enough
enough的意思是“足够的”。
它的用法为：
1. 如果是名词，要放在enough的后面
My mother doesn't have enough money to buy a new house.
我母亲没有足够的钱买一套新房子。
（money为名词，enough放在名词的前面。）
I made enough copies for them.
我给他们复印了足够的份数。
（copies为名词，enough放在名词的前面。）
2. 如果是形容词或副词，要放在enough的前面
Mike is tall enough to join the national basket team.
迈克足够高，可以加入国家篮球队。
（tall为形容词，要放在enough的前面。）
Are you old enough to vote?
你的年龄能投票吗？
（old为形容词，要放在enough的前面。）
The exerciese was easy enoughfor them to complete.
这个练习对他们来说很容易完成。
（easy为形容词，要放在enough的前面。）
3. 如果是动词，要放在enough的前面
You have done enough for today.
你今天做得够多了。
（done为动词，要放在enough的前面。）
Make sure you drink enough to stay hydrated.
确保你喝足够的水来保持水分。
（drink为动词，要放在enough的前面。）
二、not enough
not enough 的意思是“不够”。
它的用法为：
1. not enough +名词
There aren't enough plates for everyone.
盘子不够每个人用的。
2. not + 形容词或副词+enough
The rope isn't strong enough.
绳子不够结实。
Max can't go to school because he is not old enough.
马克斯不能上学，因为他还不够大。
3. not +动词+enough
We don't have enough time.
我们没有足够的时间。
He doesn't study enough.
他学习不够。
We hadn't trained enough and we lost the game.
我们训练不够，输掉了比赛。
三、enough的其他句式
1. enough for somebody/ something
These jeans are tight enough for me.
这条牛仔裤对我来说足够紧了。
2. enough to do something
The fish you bought is enough to feed a dozen people.
你买的鱼足够十二个人吃。
I have some money, but this isn't enough to buy lunch for everyone.
我有一些钱，但这不够给每个人买午餐。
3. enough for somebody/something to do something
The house is big enough for your parents to live comfortably.
这房子大得足以让你父母住得舒服。