单词	smart drug
释义	smart drugˈsmart drug noun [countable] a drug that is intended to improve your memory and ability to think
随便看	Fens feral Ferdinand and Isabella Ferdinand, Rio Fergie Ferguson, Sarah Ferguson, Sir Alex Fermanagh ferment fermentation Fermi, Enrico Fermor, Patrick Leigh fern ferny ferocious ferociously ferocity Ferrari Ferrero Rocher ferret Ferrier, Kathleen Ferris wheel ferrous ferrule ferry

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