世界粮食价格的不稳定性在许多国家还是很明显的，这种不稳定性恶化了原本就很高的食物价格。
World food price volatility remains significant and in some countries, the volatility is adding to already higher local food prices.
天然除虫菊酯虽然具有理想化学农药的一些特性，但光不稳定性和昂贵的价格限制其大面积使用。
Pyrethrum possesses some ideal characteristics of environmental compatible chemical pesticide, however its photo lability and expensive price limit its broad use in the field.
此房价格是净得，因房主在此房也是投资性住房，所以鉴于现在房价的不稳定性，索性低价出售。
The room price is a net gain, because the owner of this house is an investment in the housing, so in view of the instability of prices, simply low price.
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