单词	heliogram
释义	heliogram /ˈhiːlɪə(ʊ)ɡram / noun A message sent by reflecting sunlight in flashes from a movable mirror: the prehistoric Indian could send his heliograms considerable distances... We will confirm your order by telephone, fax, email, snail mail, carrier pigeon, heliogram or a certain pattern of stones at a designated place.
随便看	dewan dewar Dewar, Sir James dewater dewax dewberry dewclaw dewdrop Dewey Decimal Classification Dewey, George Dewey, John Dewey, Melvil Dewey system Dewey, Thomas Edmund dewfall Dewi dewily dewiness dewlap deworm dewormer dew point dew pond Dewsbury dew worm

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