The author points out that, in current situation, we determines price of domestic oil product by adding additional corresponding cost and profit based on weighted international prices.
2
因此,在近年国际市场油价变化莫测、不断攀升期间,日本国内市场石油价格变动不大。
It is chiefly because of this fact that the oil price remains fairly stable on Japan's home market while on the international oil market oil prices fluctuate unpredictably and keep soaring.