大自然 + 的 + Noun
大自然 (dà zìrán) means "nature" in the broad sense of the natural world, including all living things and physical phenomena. The prefix 大 (great) distinguishes it from 自然 alone, which can also mean "natural" as an adjective. It is used when referring to nature as a whole.
周末我喜欢去山里感受大自然的美。
zhōumò wǒ xǐhuān qù shān lǐ gǎnshòu dà zìrán de měi.
On weekends I like to go to the mountains to enjoy the beauty of nature.
大自然的力量是人类无法控制的。
dà zìrán de lìliàng shì rénlèi wúfǎ kòngzhì de.
The power of nature is beyond human control.
孩子们应该多接触大自然,别总是待在家里。
háizimen yīnggāi duō jiēchù dà zìrán, bié zǒngshì dāi zài jiā lǐ.
Children should have more contact with nature and not always stay at home.