oppression
n[U]
oppressing or being oppressed 压迫; 压制
a tyrant's oppression of his people 暴君对人民的压迫
a history of oppression 一部压迫史
victims of oppression 受迫害者.
Officials used to have trouble with the foreign names of people passing through Ellis Island, and because they were so busy, many people's names got changed in the rush.