cull的例句（cull在句子中的用法）

• Said Dr. Cull to the high school students touring the laboratory. 卡尔博士对前来参观实验室的高中生们说.
• It is usually good practice to cull the poorest prior to field planting. 通常在实践上的好方法是在出圃栽植前挑出最弱的苗木.
• the annual seal cull 每年对海豹的选择性宰杀
• 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。