vigilante 治安维持会
A person or group who takes the responsibility of a law enforcement officer into their won hands.
承担执法人员维持治安责任的个人和群体。
例句：
The subway vigilante in New York was in the media for weeks.
纽约地铁治安维持会几周来受到了媒体的关注。

tax evasion 逃税
The illegal attempt by a taxpayer to avoid paying his or her taxes.
纳税人企图逃避纳税的非法行为。
例句：
Bill was found guilty of tax evasion and owes the IRS over $60,000 in back taxes.
比尔被判逃税罪，他现在仍欠国内收入局六万多美元的滞纳税金。

white-collar crime 白领犯罪
Crimes committed by persons in businesses including expense-account padding, stealing office supplies, price-fixing, product fraud, etc.
公司职员的犯罪，包括虚报开支、偷盗办公用品、私定价格、产品欺诈等。
例句：
Businesses are losing millions of dollars, and products are more expensive due to white-collar crime.
由于白领犯罪，企业界每年损失数百万美元，产品也因之更贵。

vandalism 故意毁坏
The defacement or destruction of public or private property.
损坏或破坏公私财产的行为。
例句：
Vandalism is a major problem in inner city schools.
故意毁坏财物的行为是市内学校的一个严重问题。

vice squad 警察缉捕队
Plain clothes policeman who work undercover to detect crime.
隐蔽调查犯罪的便衣警察。
例句：
Sean has been a member of the vice squad for nine years.
西恩在缉捕队工作已经9年了。

war crime 战争犯罪
Crimes that violate the customs and laws of war.
违犯战争法律和战争习惯的犯罪。
例句：
The retired officer was found guilty of war crimes when evidence was uncovered during a recent investigation.
在最近的一次调查中发现的证据证明这位退休军官曾有战争犯罪。