Energy prices remain volatile, the trend value of the dollar is uncertain, demand for and supply of biofuels is rising, and the global economy may soon recover from the recession, thus stimulating demand once again.
能源价格继续大幅波动，美元走势仍不明确，生物燃料的供求正在增加，而全球经济可能很快走出萧条，因此将再度刺激需求。