研究人员测试了这些狗狗对约200种感性声音的反应，包括哭泣、顽皮的狗叫声和笑声。
The researchers tested the dogs' reactions to about 200 emotional sounds, including crying, playful barking and laughing.
研究人员测试了这些狗狗对约200种感性声音的反应，包括哭泣、顽皮的狗叫声和笑声。
The researchers tested the dogs' reactions to about 200 emotional sounds, including crying, playful barking and laughing.
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