但是人类也有责任。
As in humans, white cells are part of the alligator's immune system.
对于人类来说，白细胞是鳄鱼的免疫系统一部分。
And because humans walk upright. the armpit is the ideal body part to disperse scent.
由于人类是直立行走的，因此腋窝是分散气味最理想的身体部位。
Humans are the principle part of society.
人是社会的主体。
Not only do humans make mistakes, they make mistakes as part of their everyday behavior.
错误，而且犯错误是人们日常行为的一部分。
Not only do humans make mistakes, they make mistakes as part of their everyday behavior.
错误，而且犯错误是人们日常行为的一部分。
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