Definition: relating to people or their characteristics Level: B1
人体由各种器官和系统组成。
The ___human body is composed of various organs and systems.
研究人员经常研究人类行为以理解社会互动。
Researchers often study ___human behavior to understand social interactions.
由于计算中的人为错误，问题发生了。
The problem occurred due to ___human error in the calculation.
