Read the following Paragraph carefully and then translate it into Chinese.
The period of adolescence, i.e.，the period between childhood and adulthood, may be long or short, depending on social expectations and on society’s definition as to what constitutes maturity and adulthood. In primitive societies adolescence is frequently a relatively short period of time, while in industrial societies with patterns of prolonged education coupled with laws against child labor, the period of adolescence is much longer and may include most of the second decade of one’s life. Furthermore，the length of the adolescent period and the definition of adulthood status may change in a given society as social and economic conditions change. Examples of this type of change are the disappearance of the frontier in the latter part of the 19th century in the United States, and more universally, the industrialization of an agricultural society.
