tar
US /tɑːr/
UK /tɑːr/

1.
焦油, 沥青
a dark, thick, flammable liquid distilled from wood or coal, consisting of a mixture of hydrocarbons, resins, and alcohols. It is used for waterproofing and as a preservative.
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The road was paved with hot tar.
这条路是用热沥青铺的。
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Sailors used tar to seal the wooden ships.
水手们用焦油来密封木船。