tar
noun [ U ] uk/tɑːr/ us/tɑːr/
（用于铺路的）煤焦油沥青，柏油
a black substance, sticky when hot, used especially for making roads
烟碱，焦油
one of the poisonous substances found in tobacco
a low tar cigarette 焦油含量低的香烟
Idiom
beat/knock/whale the tar out of someoneidiom US informal 猛揍（某人），狠揍（某人）
to hit someone forcefully and repeatedly
The boxer knocked the tar out of his opponent. 那名拳击手狠狠地击打对手。
tar
verb [ T ] uk/tɑːr/ us/tɑːr/ -rr-
（在…表面）覆盖焦油；铺柏油
to put tar on a surface
Idioms
tar someone with the same brushidiom 认为（某人与另一人）是一丘之貉
to think that someone has the same bad qualities as another person
Because they worked so closely in the same department, John was tarred with the same brush as Tim. 由于在同一个部门有密切的工作关系，约翰被认为跟蒂姆是一丘之貉。
tar and feather someoneidiom （作为惩罚）将（某人）浑身涂满柏油并粘上羽毛
to cover someone in tar and feathers as a punishment