The dual labour market theory explains the division between the primary and secondary sectors of the economy.
二元劳动力市场理论解释了经济中主要部门和次要部门之间的划分。
According to the dual labour market theory, there are two distinct segments in the labor market.
根据二元劳动力市场理论，劳动力市场存在两个截然不同的部分。