146. A precise definition of poverty is actually very difficult to determine . Where does one draw the line between those who are poor and those who are not ?

　　对贫困的精确定义实际上是很难的。如何在贫穷和非贫穷的人之间划一条界限呢？

　　147. Admittedly , bribery and corruption are endemic to our political and economic systems , but it doesn't necessarily follow that all politicians and business people resort to illicit behavior .

　　诚然，贿赂和腐败在我们的政治和经济系统中很流行，但这并不是说所有的政府官员和商界人士都采取违法行为。

　　148. There's little doubt that a third World War is avoidable , but it is highly unlikely that regional conflicts will disappear in the foreseeable future .

　　毫无疑问，第三次世界大战是可以避免的，但是，在可预见的将来地区冲突消失是非常不可能的。

　　149. Some people assume that investing in stock is a safe pursuit , but their assumption fails to hold water when considering the substantial risk involved .

　　有的人想当然地认为投资股票是有把握的事情，但是，考虑到涉及的巨大风险，他们的想当然就说不通了。

　　150. Some people have called for accelerated across-the-board changes . Their approach quite frankly ignores the need for gradual but effective changes .

　　一些人要求更快速的全盘改变。他们的做法的确忽略了渐进而有效的改变的必要性。

(责任编辑：田学江)