单词	sky wave
释义	sky wave noun : a radio wave that is propagated by means of the ionosphere Word History First Known Use 1924, in the meaning defined above
随便看	picks off picks on picks out picks over picks the brains of picks up picks up on picksman picksmen picksome pickthank pickthanks pickthatch picktooth pickup pickup arm pickup cartridge sensibilized sensibilizeed sensibilizeing sensibilizer sensibilizes sensibilizing sensible sensible heat

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