Can you remember road workers applying a mixture of asphalt and gravel on dirt roads? How they would spread it lightly and evenly, laying down a black carpet? Although asphalt smells unpleasant, we love the smooth surface of asphalt roads and the comfortable rides they provide. Indeed for most of us, our impressions about asphalt are pretty much limited to roads.
小時候看著修路工人把摻雜柏油的碎石傾倒在黃泥路上，經推整、輾平，一條宛如黑色地毯的柏油路就鋪好了，雖然柏油的味道並不好聞，柏油路的舒適與平坦卻令人愛，對柏油的印象，也僅止於鋪路。