That is why high schools in some states require that their students study foreign languages or complete three years of math, while high schools in other states don't have those requirements.
這就是為什么有些州的中學要求學生學習外語或修完三年的數學課程,而其他州的中學卻沒有那些要求。
States also have the power to provide protection for the people who live there, and they do this by having state police forces (or groups of people and organizations that protect ordinary people).
各個州還有為州內居民提供保護的權力,它們是靠州內的警察機關做到的(或保護一般的人的一群人和組織)。
The federal (or national) government has an army for fighting internationally, but the states have the police to take care of problems within the state.
聯邦(或國家)政府擁有在國際上作戰的軍隊,而各個州擁有警察來處理州內的事務。
Individual cities can have police forces, too.
個別城市也可以擁有警察機關。
Each of the fifty states are also responsible for providing safety for the people who live there.
五十個州都有為州內居民提供安全的義務。
They do this by having firefighters who can put out (or end) fires when they get out of control.
它們是靠撲滅(或終結)失控大火的消防員做到的。
Driver's licenses (or permission to drive a car) are under the domain (or responsibility) of the states.
駕照(或開車許可證)由各大州控制。
Each state can decide who is allowed to get a driver's license, and those driver's licenses look different in each state.
每個州能決定誰可以得到駕照,每個州的駕照看起來都不相同。
There is no national driver's license in the United States.
美國沒有國家駕照。
Finally, individual states have the power to approve zoning and land use, or the rules for what kinds of things the land can be used for, such as for housing, business, or parks.
最后,各州擁有批準分區和土地使用的權力,或決定土地的用途,比如用于住房、商業或公園。
The federal government cannot tell the states how to use their own land unless there is federal land within a state.
如果聯邦政府在某個州內沒有土地,那它就不能命令這個州該如何使用它們的土地。