沥青，人造沥青：某种厚厚的、黑而粘的物质，由炭焦、木焦或石油的剩余物中提炼出来，用于防水、盖屋顶、填缝和铺路。

Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving.

youdao

你家的屋顶可能是用一种叫沥青的石油产品做成防水的。

The roof of your home is probably made waterproof by an oil product, bitumen.

youdao

沥青主要用来铺路。它的其他用途可做一般防水产品，包括使用沥青生产盖屋顶用的油毯和密封平面屋顶。

Bitumen is mainly used for paving, and also can be used as common waterproof product, involve linoleum for roofing and seal planar roof.

youdao