V-T To exterminate a group of people or animals means to kill all of them. 消灭
A huge effort was made to exterminate the rats.
花了大气力来消灭这些老鼠。
extermination N-UNCOUNT 消灭
...the extermination of hundreds of thousands of their brethren.
…他们几十万同胞的灭绝。
应用推荐