The researchers scored five distinct mouse pain expressions. Eyes close and squint, nose bulges, cheeks bulge and mice also pull back their little round ears and move their whiskers.
研究者们找出了老鼠五种明显不同的痛苦表情：眼睛紧闭或斜视、鼻子鼓胀、面颊凸出、耳朵向后伸、胡须抖动。
To eat dinner, I found that belly bulge, delicious food smell nose, stomach is full.
到了吃晚饭的时候，我才发现肚子胀了，香喷喷地饭菜闻到鼻子里，肚子就已经饱了。
To eat dinner, I found that belly bulge, delicious food smell nose, stomach is full.
到了吃晚饭的时候，我才发现肚子胀了，香喷喷地饭菜闻到鼻子里，肚子就已经饱了。
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