1. amend [ə'mend] 
v. 修改；改善，改进
The president agreed to amend the constitution and allow multi-party elections. 总统同意了修正宪法并且允许多党选举。

2. revise  [rɪ'vaɪz]  
v. 修正；复习；校订
They realized that some of their prices were higher than their competitors' and revised prices accordingly.
他们意识到他们的部分价格比竞争对手的高，就相应地调整了价格。

3. approximate [ə'prɒksɪmət] 
adj. 近似的；大概的
The approximate cost varies from around $150 to $250. 大致的费用在$150至$250之间不等。

4. approach [ə'prəʊtʃ]  
n. 方法；途径；接近v. 接近；着手处理
The Bank has approached the issue in a practical way. 该银行已经务实地处理了这个问题。

5. arbitrary ['ɑːbɪt(rə)rɪ]  
adj. 任意的；武断的；专制的
Arbitrary arrests and detention without trial were common. 不经审讯随意扣押是常有的。

6. circulate ['sɜːkjʊleɪt]  
v. 传播，流传；循环；流通
The document was previously circulated in New York at the United Nations. 这份文件过去曾在纽约的联合国总部传阅过。

7. digest [daɪ'dʒest]  
v. 消化；吸收；融会贯通
Do not undertake strenuous exercise for a few hours after a meal to allow food to digest. 饭后几小时内不要做剧烈运动，以让食物消化。

8. absorb [əb'zɔːb] 
vt. 吸收；吸引；承受；理解；使…全神贯注
Can your brain absorb all this information?  你的脑袋能吸收这全部信息吗?

9. assimilate [ə'sɪmɪleɪt] 
v. 吸收；同化
There is every sign that new Asian-Americans are just as willing to assimilate. 各种迹象表明新的亚裔美籍人简直一样愿意被同化。

10. similar ['sɪmɪlə] 
adj. 相似的
You should end up with something similar to what I have below.  操作结束后，你应该会得到与下图相似的结果。