我不会走着去的—太远了。
我可以走着去吗?
只有大约300米。你可以走着去。
I want to go on the bridge " where I have to risk my life to get to class."
我要走另外一座桥,我得冒着生命危险去教室“
so for the first time I had to walk to class for a few days.
所以在最初的那些天,我不得不走着去上课。
Here are humans who had to walk long distances potentially to find the food, kill the food at great risk to themselves; inspiring a cascade of physiological effects that have to do with fear and arousal and things like that, not to mention all the calories one would burn doing this kind of activity.
这些人可能需要走很远的路,去寻找食物,冒着巨大危险,杀死猎物,人们耗费能量以激活一系列生理效应,用以战胜恐惧,引发斗志,更不用说人们在狩猎的过程中,消耗的卡路里量了
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