The radio was on at full blast.

【blast】收音机开到了最大音量。

During the rare moments that the television was off, Dad would put on his old Elvis records and play them at full blast.

少有电视关掉时候，爸爸会放他旧猫王唱片， 开足马力播放。

It speeds up the heart — the whole body is roaring away at full blast like a furnace with all its draughts wide open.

它加快了心脏速度——整个身体都全速咆哮， 就像一个大口大开熔炉。