noun 下载 🔗分享 樟脑丸, 卫生球。 (usually in plural) A small ball of chemical pesticide (typically naphthalene) and deodorant placed in or around clothing and other articles susceptible to damage from mold or moth larvae in order to protect them from this damage. Examples : "My grandmother puts mothballs in her closet to protect her winter coats from moths. " 我奶奶在衣橱里放樟脑丸，保护她的冬大衣不被蛾子咬坏。 substance item chemistry insect material 与AI对话词汇游戏阅读练习
