VERB
部分捕杀，选择性宰杀(为减少动物种群数量而杀掉其中较弱者)
To cull animals means to kill the weaker animals in a group in order to reduce their numbers.
例句
To save remaining herds and habitat, the national parks department is planning to cull 2000 elephants.
为挽救现存兽群和它们的栖息地，国家公园部计划选择性捕杀2,000头大象。