selective poison

例句：

1. 1. The new policy allows for selective enforcement of regulations.
   新政策允许对法规进行选择性执行。
2. 2. He is selective in his choice of friends.
   他在朋友的选择上很挑剔。
3. 3. The company is selective about which products it will carry.
   该公司在选择要销售的产品时非常挑剔。