An aromatic gum resin obtained from African and Asian trees of the genus Boswellia and used chiefly as incense and in perfumes.是什么意思_An aromatic gum resin obtained from African and Asian trees of the genus Boswellia and used chiefly as incense and in perfumes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句