1. blast off : 点火起飞；
2. at full blast : 全力以赴的[地], 最有效率的[地], 以最高的速度, 非常繁忙, 非常响亮的[地]；
及物动词
名词
1. 爆炸
A blast is a big explosion, especially one caused by a bomb.
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.
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.
1. a very long fly ball
2. intense adverse criticism
e.g. Clinton directed his fire at the Republican Party
the government has come under attack
don't give me any flak
3. a highly pleasurable or exciting experience
e.g. we had a good time at the party
celebrating after the game was a blast
Synonym: good time
4. a sudden very loud noise
5. an explosion (as of dynamite)
6. a strong current of air
e.g. the tree was bent almost double by the gust