1. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
    不久，一架直升飞机飞到现场，来搭救失事飞机的幸存者。

2. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
    不久，一架直升飞机飞到现场，来搭救失事飞机的幸存者。

3. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
    不久，一架直升飞机飞抵飞机失事现场，来搭救这几个幸存者。

4. In two minutes they were at the scene.
    警察只用了两分钟就赶到了现场。

5. I reach for the light switch, and as it silently lights the scene, I return to the bed to observe the patient with an unemotional, medical eye.
    我伸手去开灯。灯静静地照亮了整个病房，我走回病床边，用无动于衷的、医生的目光观察着病人。

6. For the Communist Party had come on the scene and that changed the whole course of China´s history.
    因为共产党已经登上了历史舞台，并且改变了整个中国历史的进程。