cull例句

the annual seal cull
每年对海豹的选择性宰杀

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.

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.

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