英汉词典

1. 爆炸
    A blast is a big explosion, especially one caused by a bomb.

    e.g. 250 people were killed in the blast.
           250人在这次爆炸中丧生。

2. 爆炸；炸毁；炸出；炸开
    If something is blasted into a particular place or state, an explosion causes it to be in that place or state. If a hole is blasted in something, it is created by an explosion.

    e.g. There is a risk that toxic chemicals might be blasted into the atmosphere.
           爆炸后有毒化学物质可能会进入大气层。
    e.g. ...a terrible accident in which his left arm was blasted off by some kind of a bomb...
           他的左臂被某种炸弹炸飞的可怕事故

3. 炸（石）；爆破
    If workers are blasting rock, they are using explosives to make holes in it or destroy it, for example so that a road or tunnel can be built.

blast的解释

    e.g. Their work was taken up with boring and blasting rock with gelignite...
           他们的工作是用葛里炸药炸石头，非常枯燥。
    e.g. They're using dynamite to blast away rocks to put a road in.
           他们用炸药炸石筑路。