He devised a closed toilet that gathered dung and urine into a container at the bottom, which was then used as organic fertilizer on his land.是什么意思_He devised a closed toilet that gathered dung and urine into a container at the bottom, which was then used as organic fertilizer on his land.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句