Human means relating to or concerning people.
the human body.
人体。
It was one of the worst disasters in human history.
它是人类历史中最严重的灾难之一。
Human feelings, weaknesses, or errors are ones that are typical of humans rather than machines.
an ever-growing risk of human error.
一种日益增长的人为误差的风险。
humans
You can refer to people as humans, especially when you are comparing them with animals or machines.
Like humans, cats and dogs are omnivores.
和人类一样,猫和狗是杂食性动物。
The drug was tested on animals before it was tested on humans.
在人体测试之前,该药物先要在动物身上测试。