二战期间，纳粹对犹太人实施了残酷的种族迫害，这是历史上最黑暗的大屠杀之一。

During WWII, the Nazis carried out a brutal ___pogrom against Jewish people, one of the darkest massacres in history.

历史书中记载了19世纪针对犹太人的一系列迫害行动。

History books record a series of ___pogroms against Jewish people in the 19th century.