“存在的”造句

硝酸盐是水和土壤中自然存在的化学物质。
Nitrates are chemicals that occur naturally in water and the soil.

亚伯拉罕·马斯洛形容心理学是“存在的科学”。
Abraham Maslow described psychology as "the science of being."

酒后驾车是个常年存在的问题。
Drinking and driving is a problem all the year round.

• #存在的