美国连续第三年看到凶杀案大幅下降,改善了公共安全。 U.S. sees third straight year of significant drop in homicides, improving public safety.

根据最近的犯罪统计数字,美国已连续第三年走上了杀人案大幅减少的正轨。 The United States is on track for its third consecutive year of a significant decrease in homicides, according to recent crime statistics. 这种趋势表明,国家公共安全继续得到改善,尽管下降的具体原因仍在调查之中。 This trend suggests a continued improvement in national public safety, though the specific causes for the decline remain under investigation.