cull
verb [ T ] uk/kʌl/ us/kʌl/
（为减少或限制数量而对动物）选择性宰杀，剔除（尤指病弱动物）
When people cull animals, they kill them, especially the weaker members of a particular group of them, in order to reduce or limit their number.
The plan to cull large numbers of baby seals has angered environmental groups. 选择性捕杀大量小海豹的计划引起了环保组织的强烈愤慨。
Phrasal verb
cull something from something 从…收集，采集，挑选（观点或信息）
to collect ideas or information from various places
Here are a few facts and figures I culled from the reports the team produced. 这是我从团队报告中挑选出来的一些资料和数据。