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1. Oxford Dictionary

   hydrogen bomb

   英式

   • n.
     an immensely powerful bomb whose destructive power comes from the rapid release of energy during the nuclear fusion of isotopes of hydrogen (deuterium and tritium), using an atom bomb as a trigger.

   • noun: hydrogen bomb, plural noun: hydrogen bombs

2. • 更多解釋

   hydrogen bomb

   • IPA[ˈhīdrəjən bäm]

   美式

   • n.
     an immensely powerful bomb whose destructive power comes from the rapid release of energy ...

   Oxford American Dictionary