asphalt/ˈæsflt; ?@ -fɔ:lt; `æsfɔlt/ n[U]black sticky substance like coal tar, mixed with sand or gravel for making road surfaces, or used to make roofs, etc waterproof 沥青（通称柏油）. asphalt, v [Tn] cover (esp a road) with asphalt 以沥青铺（尤指道路）.
牛津英汉双解词典