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来源:雅诚德英语网
The duo also used the Wolf pups' dog companions as demonstrators, giving the dogs verbal commands to focus on the other side of the wall.
两位研究者同时还用狼崽的狗伙伴作示范,命令这些狗注视着墙后面。
The duo also used the Wolf pups' dog companions as demonstrators, giving the dogs verbal commands to focus on the other side of the wall.
两位研究者同时还用狼崽的狗伙伴作示范,命令这些狗注视着墙后面。