The types of activity的用法和樣例：
例句
- Patterns of activity differ between species.
同種的活動(dòng)形式不同。 - The security afforded by the knowledge that an income is provided in every life situation has the potential to encourage forms of solidarity-based economic activity.
由知識提供的保障是提供給任何生存環(huán)境下的一份收入，它傾向于鼓勵基于團結的經(jīng)濟活動(dòng)形式。
