In some ways gerbils were our most successful pet.
从某种程度上说，沙鼠是我们最为成功的宠物。
Gerbils, on the other hand, mate for life and raise babies peaceably together.
另一方面，沙鼠相配，相伴终生，相安无事地一起抚养崽子。
They are well-organized as some gerbils hunt for food while others guard the bunker.
牠们分工非常细腻，有沙鼠负责觅食，也有沙鼠负责保卫地堡。
They are well-organized as some gerbils hunt for food while others guard the bunker.
牠们分工非常细腻，有沙鼠负责觅食，也有沙鼠负责保卫地堡。
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