hat-pin

n long pin used to fasten a hat to the hair 帽针（将帽子别在头发上的长别针）.

Harvard, Harvard University, harvest, harvest festival, harvest home, harvest moon, has, has-been, hash, hashish, hasp, hassle, hassock, haste, hasten, hastily, hastiness, hasty, hat, hat trick, hatband, hatch, hatchback, hatchet, hatchet job, hatchet man, hatchet-faced, hatching, hatchway, hate, hateful, hatefully, hatefulness, hatless, hatred, hatter, haughtily, haughtiness, haughty, haul,