词典释义：
a large waterbird with a long flexible neck, short legs, webbed feet, a broad bill, and typically all-white plumage
天鹅。
〈英，非正式〉 无目的地漫游；漂游（常被人看作不负责任或炫耀）
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swanning around Europe nowadays are we? 我们现在要在欧洲漫游吗？
Sir Joseph Wilson (1828—1914), English physicist and chemist. He devised an electric light bulb in 1860 and in 1883 he formed a partnership with Thomas Edison to manufacture it.
斯旺，约瑟夫·威尔逊爵士（１８２８—１９１４，英国物理学家和化学家，于１８６０年发明了电灯泡，并在１８８３年与托马斯·爱迪生合伙进行生产）。
"Old English, of Germanic origin; related to Dutch
