humming-bird

n any of various types of tropical bird, usu very small and brightly coloured, that make a humming sound by vibration of the wings 蜂鸟（产於热带, 通常体小而色彩鲜艳, 双翼鼓动时发嗡嗡声）.

humanitarianism, humanity, humanization, humanisation, humanize, humanise, humankind, humanly, humble, humbler, humbly, humbug, humdinger, humdrum, humerus, humid, humidify, humidity, humiliate, humiliating, humiliation, humility, humming-top, hummock, humor, humorist, humorous, humorously, humour, humour (US humor), humourless (US humorless), humourous, hump, humpback, humpbacked, humph, humus, Hun, hunch, hunchback (also humpback), hunchbacked (also humpbacked), hundred,