To bring the walkways into use again required a flexible floor screed strong enough to resist deterioration, as well as coping with the bridge opening and closing and heavy foot traffic.是什么意思_To bring the walkways into use again required a flexible floor screed strong enough to resist deterioration, as well as coping with the bridge opening and closing and heavy foot traffic.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句