n.卫生球，樟脑球；vt.封存；adj.后备的； 变形： 复数：mothballs过去式：mothballed过去分词：mothballed现在分词：mothballing第三人称单数：mothballs 英英释义： mothball[ 'mɔθbɔ:l, 'mɔ:θbɔ:l ]n.a small sphere of camphor or naphthalene used to keep moths away from stored clothing同义词：camphor ballv.put into l