Recent research has found that mice make humanlike facial expressions when they are in pain.

最近的研究发现当老鼠痛苦的时候，它们也表现出痛苦的面部表情。

youdao

Recent research has found that mice make humanlike facial expressions when they are in pain.

最近的研究发现当老鼠痛苦的时候，它们也表现出痛苦的面部表情。

youdao