People believe the basic logic of it. Many of them believe the basic logic says that they just cannot give up these weapons.

人们相信这一基本逻辑。许多相信这一基本逻辑的人认为，朝鲜不可能放弃核武器。

So whoever tells us that they will just need some more time, does not understand the very basic logic of the crisis we are in.

因此， 无论谁告诉我们他们只需要更多时间，都不了解我们所处危机的基本逻辑。

" Selective breeding" is using that basic logic, that basic process with plants or animals, in order to produce plants or animals that have certain characteristics.

“选择育种” 是使用基本逻辑， 即植物或动物的基本过程，以生产具有某些特征的植物或动物。