He said six gun shots had rung out, then silence followed by another six gunshots, and screams and trumpeting of elephants.

他说，先听到六次枪声，沉寂之后又响了六声，还听到大象的尖叫和喇叭似的声音。

youdao

Another couple, now willing to talk about that night, said they heard the first screams.

另一对刚愿谈及当晚之事的夫妇说他们听到了第一声尖叫。

youdao

Twelve seconds later, another explosion, more screams, more panicked people running.

CNN: From backpacks to 'flash-bangs': Boston's week of terror