The retarded brother shouted, "Let him have it," whereupon the brother shot and killed the police officer.

发育迟缓的兄弟大喊,"给他一枪",于是他的兄弟开枪射杀了这名警官

耶鲁公开课 - 心理学导论课程节选

The police officer shouts for the brother, the non-retarded brother, to drop the gun.

警官要求智力正常的兄弟,把枪放下

耶鲁公开课 - 心理学导论课程节选

And a police officer sees them and points the gun at them.

一名警官发现了他们,并用枪指着他们

耶鲁公开课 - 心理学导论课程节选

And one of the brothers points a gun at the police officer.

兄弟中的一个用枪指着警察

耶鲁公开课 - 心理学导论课程节选