种族歧视在许多社会中是一个严重问题。

Racial ___discrimination is a serious issue in many societies.

公司有政策防止对老年工人的歧视。

The company has policies to prevent ___discrimination against older workers.

性别歧视仍然是女性职业发展的障碍。

Sexual ___discrimination remains a barrier for women in career advancement.