horseback

n.马背

horrifying, horrifyingly, horror, horror-stricken (also horror-struck), horrors, hors de combat, hors-d'oeuvre, horse, Horse Guards, horse laugh, horse sense, horse-and-buggy, horse-box, horse-chestnut, horse-fly, horse-power, horse-race, horse-racing, horse-radish, horse-trading, horseflesh, horsehair, horseman, horsemanship, horseplay, horsepower, horseshoe (also shoe), horsewhip, horsewoman, horsy, hortative, horticultural, horticulture, horticulturist, hosanna, hose, hosier, hosiery, hospice, hospitable,