经典句型:I heard a scream and saw a woman lying on the ground. 我听见一声尖叫，看到一个女人躺在地上。

A:It is said you witnessed the murder.
甲:据说你目击了这起谋杀案。
B:Yes. It's terrible.
乙:是的，太可怕了。
A:Would you please tell us what you'd seen?
甲:请告诉我们你看到什么了。
B:I heard a scream and saw a woman lying on the ground.
乙:我听见一声尖叫，看到一个女人躺在地上。

经典句型:Come down to the station with me. 跟我去警察局。

A:Come down to the station with me.
甲:跟我去警察局。
B:But why?
乙:可是为什么？
A:Someone saw you steal a car and we will get things clear up.
甲:有人看见你偷车，我们要查清楚。

句型讲解：
witness如作为名词，意思是“目击者、见证人”。如:a witness to the accident。Ta