The building will use solar energy to heat the pools and the interior area, and all backwash water is to be filtered and returned to the swimming pools.是什么意思_The building will use solar energy to heat the pools and the interior area, and all backwash water is to be filtered and returned to the swimming pools.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句