mongrel word

例句：

1. 1. The mongrels were the first to show signs of life in the desert.
   杂种最先在沙漠中显示出生命迹象。
2. 2. The mongrels are a mix of different breeds.
   这些杂种是不同品种的混合。
3. 3.The mongrels have been bred for their unique characteristics.
   这些杂种已经被培育出它们独特的特性。