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.
Professor Karl von Frisch, an Austrian scientist, spent many years of his life researching the amazing ways honey bees communicate in their dark hives.