301.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。

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。

302.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。

The retired¹ officer was found guilty of war crimes when evidence was uncovered during a recent investigation².
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。

303.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。

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。