单词	D region
释义	D region noun : the lowest part of the ionosphere occurring approximately between 30 and 55 miles (50 and 90 kilometers) above the surface of the earth Word History First Known Use 1930, in the meaning defined above
随便看	faraones faraway farawayness farawaynesses farce farce-comedy farced farcer farcers farces farceur farceurs farceuse farceuses farci farcical farcicalities farcicality farcically farcicalness farcicalnesses farcie farcied farcies farcin

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