的PS可以用粉笔加息行动的改善市场价格苯原料，这是用于制造苯乙烯单体。
The PS hikes can be chalked up to an improving price market for benzene feedstock, which is used to make styrene monomer .
此次住房价格指数调查中仅有二手单体别墅被包括其中，这是经济学家认为的最可信赖的住房价值数据。
Only previously owned, single-family homes are included in the Case-Shiller survey, which economists consider the most reliable indicator of home values.
微观经济学研究单体经济模型中经济活动个体的经济行为，核心是价格决定理论。
Microeconomics studys the economics activity individual's action in the economics individual former, the core is price decision theory.
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