2221
conclusion
n.结论、推论、结束、结尾、缔结、议定
deduce a conclusion（推导出结论）
jump to a hasty conclusion（下出草率的结论）
draw a wrong conclusion（得出错误的结论）
2222
fix on
使目光或注意力集中于、确定、固定
fix on a date for the meeting
He fixed on her as his secretary.
fix on the position
2223
in the air
在流传中、风闻、悬而未决的
Plans are still up in the air.
The issues hung in the air. The scandal has been in the air.
There was some bad news in the air.
2224
diagram
n.图表、图解、简图
flow diagram（流程图）
draw a diagram of the rail network
2225
mix with
（使……与……）相混合
We drink whisky mixed with beer.
The paint has to be mixed with oil.
mix with sugar and salt
2226
be related to
与……有联系、与……有关
be related to drug abuse
be related to family's happiness
be related to politics
2227
spit out
吐出、励声说出
spit out the stone
spit out the blood spit out angry word
spit out the story
2228
take……into consideration
考虑到、顾及
She only took into consideration of her own interest.
Take her mood swings into consideration.
These are factors（n.因素） we must take into consideration.
2229
in doubt
不能肯定的、可怀疑的
He is in doubt what to do.
The outcome remains in doubt. The whole matter is still in doubt.
The success of the system is not in doubt.
2230
institution
n.机构、制度、习俗、设立、制定
A bank is a financial institution.
legal institution
the social security institution
2231
constitution
n.宪法、章程、体质、体格、构成、构造、组成、形成
The constitution is the fundamental（adj.n.基础） law.
federal constitution physical constitution
chemical constitution the constitution of a committee
2232
diverse
adj.多种的、种种的、不同的、相同的
have diverse interests
a diverse range of products people from diverse of cultures
The opinions of the two are diverse.
2233
arrow
n.箭、矢、箭号、箭头
The arrow is an ancient weapon. The hunter carries many arrows.
Follow the arrows on the map. click the down arrow
arrows of lightning
2234
narrow
adj.狭窄的、狭隘的、勉强的
v.（使）变窄、压缩
a narrow street
a narrow passage between buildings
the bridge is too narrow
2235
sparrow
n.麻雀
A sparrow flew up to the branch.
catch sparrows
a crowd of sparrows
2236
declare
vt.宣布、宣称、断言、声明、公布、申报
I declare war on you.（宣战）
declare the meeting open declare the story to be false
declare against old rules have nothing to declare
2237
in one's way
挡住某人的路
The man stood in my way.
Don't stand in my way. A log got in his way.
The desk was in his way.
2238
break the ice
打破沉默、着手做……事
tell a joke to break the ice
need someone to break the ice
2239
focus on
以……为焦点、集中于
focus on the future
focus on the book
The class focuses on the Chinese culture.
2240
provide for
供养、为……做准备
I have a big family to provide for. He has two children to provide for.
We are busy providing for the feast.
We must provide for the old age.
学习英语，词汇量是贯穿始终的主题。语法再精通，词汇量匮乏一样是不行的。平时要大量阅读英语读物，每年词汇量输入不少于20万单词。要从听、说、读、写的顺序，从四个方面入手，逐步提升。