用一句简短&简单的话解释genocide（种族屠杀）

Genocide is the deliberate and systematic destruction, in whole or in part, of an ethnic, racial, religious, or national group.

the killing of a whole group of people

the extermination of an ethnic group.

中文解释： 种族灭绝;集体屠杀
英文解释：the policy of deliberately killing a nationality or ethnic group