名詞 amalgam:

1. an alloy of mercury with another metal (usually silver) used by dentists to fill cavities in teeth; except for iron and platinum all metals dissolve in mercury and chemists refer to the resulting mercury mixtures as amalgams
   同義詞：dental amalgam
2. a combination or blend of diverse things

1. The dentist used amalgam to fill my teeth.
   牙醫(yī)用汞合金給我補牙。