The explosive new style helped cut killy's racing time dramatically.
2019年6月六級真題（第一套）聽力 Section B
Think of something as seemingly benign as the cellphone: we have microfinance and text-based social networking at one end of the spectrum, and improvised explosive devices at the other.
2019年6月六級真題（第三套）閱讀 Section B
柯林斯高階英漢雙解學習詞典釋義
N-VAR
炸藥;爆炸物
An explosive is a substance or device that can cause an explosion.