Storing a mattress rolled up with the valve closed affects the rate of inflation, and long-term storage in a stuff sack can cause mildew.是什么意思_Storing a mattress rolled up with the valve closed affects the rate of inflation, and long-term storage in a stuff sack can cause mildew.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句