stopping bleeding and absorbing clots

例句：

1. 1.The car was stopped by the police for speeding.
   汽车因超速被警察拦下。
2. 2. The firefighters stopped the fire from spreading.
   消防员阻止了火势蔓延。
3. 3.The teacher asked us to stop talking and listen to the presentation.
   老师要求我们停止交谈，专心听报告。