gunpowder

n.黑色火药

gumboil, gumboot, gummy, gumption, gun, gun cotton, gun dog, gun-carriage, gun-deck, gun-metal, gun-port, gun-runner, gun-running, gunboat, gunfire, gunge, gunman, gunner, gunnery, gunpoint, gunroom, gunshot, gunsmith, gunwale, gurgle, Gurkha, guru, gush, gusher, gushing, gushingly, gusset, gust, gustation, gustatory, gusto, gusty, gut, gutless, gutsy,