Sent_en: 2zh The level of security incidents has declined in eight of the past 12 weeks, with the level of incidents in the past two weeks the lowest since June of 2006, Petraeus testified.
Sent_yy: 彼得雷乌斯作证说：“过去12周中有8周安全事故发生率下降，过去两周的事故发生率是自2006年6月以来最低。”