单词 雷石 例句 DEFINITIVE EXAMPLES 权威例句〔thunderstone〕Any of various mineral concretions, such as a belemnite, formerly supposed to be thunderbolts.箭石,雷石,陨石:如过去被认为是雷电的箭石等各种矿物混合美国传统 英语例句辞典收录了559068条英语例句...