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n. 机器人，自动机械26 次
The robot rats were quite minimalist, resembling a chunkier version of a computer mouse with wheels to move around and colourful markings.
这些机器鼠的设计相当简单，看起来像是一个更厚实的电脑鼠标，装有用来四处移动的轮子，并带有彩色标记。
During the experiment, the social robot rat followed the living rats around, played with the same toys, and opened cage doors to let trapped rats escape.
在实验中，社交型机器鼠跟着活老鼠四处走动，玩同样的玩具，还会打开笼门让被困的老鼠逃出来。
Meanwhile, the asocial robot simply moved forwards and backwards and side to side.
与此同时，非社交型机器鼠只是前后左右地移动。
Next, the researchers trapped the robots in cages and gave the rats the opportunity to release them by pressing a lever.
接下来，研究人员把机器鼠关进笼子，让老鼠有机会通过按压杠杆把它们放出来。
Across 18 trials each, the living rats were 52 percent more likely on average to set the social robot free than the asocial one.
在各18次试验中，活老鼠释放社交型机器鼠的可能性平均比释放非社交型机器鼠高出52%。
This suggests that the rats perceived the social robot as a genuine social being.
这表明老鼠把社交型机器鼠视为真正的社会性生物。