在淘金热时期，这种动物一度被当做宠物的翻译：During the gold rush period, the animals were once as pets 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

In the gold rush period, this animal as a pet once

During the gold rush period, the animals were once as pets

In the gold rush time, this kind of animal is treated once as the pet

the gold rush period, animals such as this was treated as a pet

During the gold rush period, the animals were once as pets