在接下来的大半个世纪中，南方的白人不遗余力地背弃内战修正法案给出的承诺，制定了种族隔离政策，即有名的吉姆·克劳法。

For most of the next hundred years, white southerners ardently subverted the promises of the civil-war amendments by enacting the segregationist policies that came to be known as Jim Crow laws.

youdao

吉姆·克劳法一度在很多年都具有法律效力，主要是在美国南部。

"Jim Crow" laws were in effect for many years, mostly in the southern United States.

youdao