But these first rubber overshoes and raincoats were all soft and sticky in summer, and hard and unelastic in the winter when it was cold.是什么意思_But these first rubber overshoes and raincoats were all soft and sticky in summer, and hard and unelastic in the winter when it was cold.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句