asphalt

名词 asphalt:

1. mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing
2. a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons
   同义词：mineral pitch

动词 asphalt:

1. cover with tar or asphalt

1. He covered over the hole in the roof with a piece of asphalt felt.
   他用一块沥青油毡盖住了房顶的漏洞。
2. Mixed asphalt and crushed stone gravel or sand, used for paving or roofing.
   沥青混泥土碎石或沙子与沥青的混合物，用于铺路或封层顶
3. Asphalt is used for making road surfaces.
   沥青常用于铺路。
4. The workers mixed the asphalt with sand and gravel together.
   工人们把沥青和沙子、石块混合在一起。

as.phalt

n.（名词）
A brownish-black solid or semisolid mixture of bitumens obtained from native deposits or as a petroleum byproduct, used in paving, roofing, and waterproofing.
沥青，柏油：一种黑褐色固体或半固体沥青混合物，采自天然矿藏或是石油的副产品，用于铺路，封屋顶和防水
Mixed asphalt and crushed stone gravel or sand, used for paving or roofing.
沥青混泥土：碎石或沙子与沥青的混合物，用于铺路或封层顶
v.tr.（及物动词）
as.phalted,as.phalt.ing,as.phalts
To pave or coat with this mixture.
用这种混合物铺路或覆盖

来源：
Middle English aspalt
中古英语 aspalt
from Medieval Latin asphaltus
源自 中世纪拉丁语 asphaltus
from Greek asphaltos
源自 希腊语 asphaltos

【引伸】
asphal.tic
adj.（形容词）