A law requires that schools provide a safe learning environment. = There is a law requiring schools to provide a safe learning environment.法令要求学校提供安全的学习环境。The new law will require passengers in the rear seats of automobiles to buckle their seatbelts.这条新法令要求汽车后座上的乘客系安全带。Schools are required by law to provide a safe learning environment.法令要求学校提供安全的学习环境。