The trio, who studied at Central St Martins College of Art &Design in London, devised the Dog Poo Spray - a can of Coloured liquid nitrogen, which freeze dog poo on to a stick when it is sprayed, allowing it to be more easily picked up and disposed of.是什么意思_The trio, who studied at Central St Martins College of Art &Design in London, devised the Dog Poo Spray - a can of Coloured liquid nitrogen, which freeze dog poo on to a stick when it is sprayed, allowing it to be more easily picked up and disposed of.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句