英语语法分析

All they knew was that this Lab was a purebred.

他们只知道马利是条纯种拉布拉多犬。

This means we can't yet be sure purebred dogs resemble their owners.

我们不能肯定纯种狗是否会和其主人越来越相似。

The studies also show that many seemingly "purebred" ethnic groups have ancestry traceable to more than one continent.

研究也显示许多看来“纯种”的民族其祖先起源自不止一个大陆。