为了确保主人不无意识地影响狗的表现，在整个实验过程中，让他们一直戴着耳机听音乐，无法听到狗叫声。

To ensure owners did not unconsciously affect their dog's behaviour they were listening to music via headphones throughout the experiment and were unable to hear the growls.

youdao

为了确保主人不无意识地影响狗的表现，在整个实验过程中，让他们一直戴着耳机听音乐，无法听到狗叫声。

To ensure owners did not unconsciously affect their dog's behaviour they were listening to music via headphones throughout the experiment and were unable to hear the growls.

youdao