1
engage in human activity
常用搭配，表示参与或进行某项活动。
Humans engage in various forms of human activity.
人类从事各种形式的人类活动。
人类活动
先理解核心含义，再看它在真实句子里的用法。
人类活动
things that people do, especially as opposed to natural processes
Humans engage in various forms of human activity.
人类从事各种形式的人类活动。
相关中文义项：人类活动
something that people do or cause to happen
Climate change is largely driven by human activity.
气候变化主要是由人类活动驱动的。
The archaeologist studied the ruins to understand past human activity.
考古学家研究这些遗迹以了解过去的人类活动。
In this pristine area, there is little sign of human activity.
在这个原始地区，几乎没有人活动的迹象。
常用搭配，表示参与或进行某项活动。
Humans engage in various forms of human activity.
人类从事各种形式的人类活动。
用于描述人类活动的影响，常接on。
The impact of human activity on climate is significant.
人类活动对气候的影响是显著的。
常用作宾语，表示研究人类活动。
Scientists study human activity to understand social patterns.
科学家研究人类活动以理解社会模式。
Not this
Human activities are destroying the planet.
Use this
Human activity is destroying the planet.
当'human activity'指代整体概念时，是不可数名词，不应使用复数形式。
Not this
The human activity is the main cause of climate change.
Use this
Human activity is the main cause of climate change.
当'human activity'泛指人类活动时，不需要加定冠词'the'。
Not this
Human's activity affects the environment.
Use this
Human activity affects the environment.
'human activity'是固定短语，'human'作为形容词直接修饰'activity'，不需要使用所有格形式。
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常作不可数名词，指人类活动总体；也可作可数名词指具体活动
Dictionary facts from ECDICT, WORDNET.