racial lines

• 种族界线

racial lines的用法和样例：

例句

1. But by winning a quarter of the white vote, Obama showed he could draw votes across racial lines even in a deep South state.
   奥巴马也赢得了四分之一的白人选票，这显示，既使在地处大南方的州里，他也能冲破种族界线。