zài / nà / duàn / lì / shǐ / zhōng / hēi / wǔ / lèi / bèi / shì / wéi / xū / yào / pī / pàn / de / duì / xiàng

在那段历史中，黑五类被视为需要批判的对象。

During that period of history, the five black categories were regarded as groups to be criticized.