DEAR SARA: I have been reading up on the use of cardboard shutters for the inside of your windows to help insulate against the cold weather.是什么意思_DEAR SARA: I have been reading up on the use of cardboard shutters for the inside of your windows to help insulate against the cold weather.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句