Many engineers now construct new roads using tire chips for backfill and insulation and to give asphalt added springiness and long璭r life.是什么意思_Many engineers now construct new roads using tire chips for backfill and insulation and to give asphalt added springiness and long璭r life.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句