tar是什么意思

n.焦油,柏油;[计]一种压缩文件的扩展名

1、The roads were covered in tar after the construction work.
施工后，道路上都被焦油覆盖了。
2、He decided to tar the roof to prevent any leaks.
他决定涂抹焦油在屋顶上，以防止漏水。

名词-焦油；动词-涂以焦油。