单词	alpha particle
释义	alpha particleˈalpha ˌparticle noun [countable] technical an atomic particle consisting of two protons and two neutrons that is sent out by some radioactive substances
随便看	honorary honoree honorific honor roll honor system honour Honourable honourable honourable mention honourably honour killing honours degree honours list Honshu hooch hoochie -hood hood hooded hoodie hoodlum Hood, Robin hoodwink hoody hooey

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