mustard gas

kind of liquid poison with vapour that burns the skin (used in World War I) 芥子气（糜烂皮肤的毒气, 曾用於第一次世界大战中）.

musk, musk-deer, musk-melon, musk-rat (also musquash), musk-rose, musket, musketeer, musketry, musky, Muslim, Muslim (also Moslem), muslin, musquash, muss, mussel, must, mustache, mustachio, mustang, mustard, muster, mustiness, musty, mutability, mutable, mutant, mutate, mutation, mutatis mutandis, mute, muted, mutely, muteness, mutilate, mutilation, mutineer, mutinous, mutinously, mutiny, mutt,