用法:
1 remove or make useless the device that sets off (a bomb, etc) 拆除（炸弹等）的引信.

用法:
2 (fig 比喻) reduce the dangerous tension in (a difficult situation) 缓和（困难局面　的紧张状态:
defuse tension, anger, a crisis 减弱紧张气氛、 平息怒火、 缓和危急局面.

• the holy of holies
• the Holy See
• the Holy Spirit (also the Holy Ghost)
• the Home Counties
• the home front
• the Home Guard
• the homeless
• the Home Office
• the home straight (also esp US the home stretch)
• the House of Commons (also the Commons)
• the House of Lords (also the Lords)
• the House of Representatives
• the Houses of Parliament
• the human race
• the Immaculate Conception
• the impossible
• the Industrial Revolution
• the inevitable
• the Infinite
• the infirm
• the initiated
• the insane
• the insured
• their
• the Iron Age