1.According to Haitian authorities, an armed commando of 28 men - 26 Colombians and two Haitian-Americans - burst in and opened fire on the couple in their home.
burst in 闯入;突然出现
eg.He burst in, making no effort to repress his fury.
他冲了进来,毫不掩饰自己的愤怒
。open fire on 朝...开火
eg.Then without warning, the troops opened fire on the crowd.
接着,在没有警告的情况下,军队向人群开了火
。2.A handful remain at large, according to police.
at large 未被捕的;在逃的
eg.Six prisoners are still at large along with four dangerous recidivists.
六名犯人与四名危险惯犯一起仍潜逃在外
。