The yellowish powdery spores of certain club mosses, especially Lycopodium clavatum, used in fireworks and explosives and as a covering for pills.是什么意思_The yellowish powdery spores of certain club mosses, especially Lycopodium clavatum, used in fireworks and explosives and as a covering for pills.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句