colour bar
noun🔊/ˈkʌlə bɑː(r)/
🔊/ˈkʌlər bɑːr/
(US English color bar)
(US English also color line)
[usually singular]a social system that does not allow black people the same rights as white people 肤色障碍；种族歧视；种族障碍 South Africa’s colour bar made marriages between different races illegal. 南非的彩条将不同种族之间的婚姻定为非法。