1. Grow: to increase in size,number, strength or quality 扩大；增加；增强
The company’s profits grew by 5% last year.
In the second quarter, we have seen smooth growth of the domestic demand, which is a key pillar of Chinese economy.
2. Increase（动词）: to become or to make sth greater in amount, number, value, etc. 增长；增多；增加
The rate of inflation increased by 2%.
We need to increase productivity.
Increase（名词）: a rise in the amount, number or value of sth 增长；增多；增加
An increase of nearly 20%
3. Surge（动词）: (of prices, profits,etc.) to suddenly increase in value 物价、利润等急剧上升；飞涨；激增
Share prices surged.
Surge（名词）: a sudden increase in the amount or number of sth （数量上）急剧上升，激增
We are having trouble keeping up with the recent surge in demand.
4. Jump（动词）: to rise suddenly by a large amount 突升；猛涨
Sales jumped from $2.7 billion to $3.5 billion.
5. Soar（动词）: to rise very quickly 急升；猛增
Unemployment has soared to 18%.
6. Rise（动词）: to increase in amount or number（数量）增加；提高
For the first half of 2016, the country's CPI rose (by) 2.1 percent on an annual basis, while this year's annual target was set at around three percent.
7. Expand（动词）: to become greater in size, number or importance 增加、增强（尺码、数量或是重要性）
Gross domestic product expanded by 6.7% in the first half of this year, China's statistics bureau said.
1. Decline（动词）: to become smaller, fewer, weaker, etc. 减少；下降；衰弱
The number of tourists to the resort declined by 10% last year.
Decline（名词）: a continuous decrease in the number, value, quality, etc. of sth （数量、价值、质量等的）减少、下降、衰退
An increase in cars has resulted in the decline of public transport.
2. Dip（动词）: to go downwards or to a lower level 下降；下沉
Sales for this quarter have dipped from $38.7 million to $33 million.
Dip（名词）: a decrease in the amount or success of sth, usually for only a short period （通常指暂时的）减少、下降、衰退
A sharp dip in profits
3. Fall（动词）: to decrease in amount, number or strength（数量）减少，下降；（强度）减少
Data showed that the company’s profits have fallen by 30%.
Fall（名词）: a decrease in size, number, rate or level 减小；减少；降低
A big fall in unemployment
4. Slowdown: a reduction in speed or activity 减缓；减速
The world's second-largest economy China has recently seen a slowdown in growth due to weak demand at home and abroad, cooling investments and excess industrial capacity.
5. Tumble（动词）: to fall rapidly in value or amount（数量或价格）暴跌、骤降
Oil prices tumbled again Wednesday.
Tumble（名词）: a sudden fall 暴跌
Share prices took a sharp tumble following news of merger.
6. Plummet: to fall suddenly and quickly from a high level or position 暴跌；速降
Major animal diseases are under control with incidence plummeting.
最常用的为speak; say; tell三个词，用法较为简单，不再一一阐述。
1. Zhu acknowledges that there are still many problems in the trial process.
Acknowledge: to accept that sth is true 承认（属实）
2. Zhang added that government investment will continue to focus on infrastructure construction that affects quality of life.
Add: to say sth more; to make a further remark 补充说；继续说
3. He admitted his guilt to the police.
Admit：to agree, often unwillingly, that sth is true 勉强承认；to say that you have done sth wrong or illegal 承认（过错、罪行）
4. He affirmed to me that the statement was true.
Affirm: (formal) to sate firmly or publicly that sth is true or that you support sth strongly 肯定属实；申明；断言
5. He is alleged to have mistreated the prisoners.
Allege: (often passive; formal) to state sth as a fact but without giving proof （未提供证据）断言；声称
6. The boy claimed to have told the truth.
Claim: to say sth is true although it has not been proved and other people may not believe it 宣称；断言；声称
7. She complained that he had been rude to her.
8. The government has declared a state of emergency.
Declare: to say officially or publicly 公布；宣布；宣告
9. He has already stated his intention to run for election.
State: to formally write or say sth, especially in a careful and clear way 陈述；说明