mean有那两种用法?

mean有四种用法:
adj.低劣的, 卑鄙的, 普通的, 吝啬的, 简陋的, 平均的, 惭愧的, 不舒服的
vt.意谓, 想要, 预定
vi.用意, 有意义
n.平均数, 中间, 中庸

mean1
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a.
1.吝啬的,小气的[(+about/over/with)]
Her husband is very mean about money.
她的丈夫在金钱上很吝啬.
2.卑鄙的,心地不好的[(+to)]
That was a mean trick!
那是一个卑劣的诡计!
3.【美】【口】脾气暴躁的,难驾驭的
4.卑贱的;鄙陋的
The young couple made their home in a mean dwelling.
这对年轻夫妇在一个简陋的住处安了家.
5.不舒服的
6.低劣的,平庸的
It was no mean feat to get him to agree.
要他同意绝非易事.
7.【美】【俚】出色的,很棒的
He played a mean game of chess yesterday.
昨天他下了一盘十分出色的棋.
mean2
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vt.[W]
1.(言词等)表示...的意思[+(that)]
What does the phrase mean?
2.意指,意谓[+(that)][+wh-]
I realized what he meant.
我明白他的意思了.
By "the cities" I mean the big cities in particular.
我所说的"城市"主要是指大城市.
Don't think I am joking; I mean business.
不要以为我是在开玩笑,我可是当真的.
3.意欲,意图,打算[+to-v][O1][O2]
I mean her no harm.
我无意伤害她.
Do you mean to go without money?
你想身无分文就走吗?
4.意谓着;有...的意义[+(that)][+v-ing][(+to)]
To a certain extent,to raise wages means increasing purchasing power.
在一定程度上,提高工资意味着增加购买力.
5.指定;预定[H][(+for)][+to-v]
The apartment was originally meant for five.
这套房间本来是准备给五口人住的.
vi.[W]
1.用意
mean3
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a.[B]
1.中间的,中等的,中庸的
2.平均的;普通的
What is the mean temperature in that locality?
那个地方的平均气温是多少?
n.[S1]
1.中间,中部;中庸
We must strike a mean and find a house that's not too big or too small.
我们得采取折衷办法,找一所不太大也不太小的房子.
2.【数】平均(值),中数