There are some very good peat substitutes available instead.

有一些很好的替代品可以代替泥炭。

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Do you have other substitutes or alternatives that are available?

你有其他替代品或选择方案可供用吗？

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No-cholesterol refrigerated or frozen egg substitutes first became available to consumers in 1973.

无胆固醇的冷藏或冻藏的蛋的代替品在1973年首次成为商品。

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Furthermore, in practice invocation of the precautionary principle focuses attention solely on the possibility of harm, often ignoring information about the dose to which people are exposed, avoiding consideration of benefits of the agent in question and whether safer substitutes are available, and giving greater weight to studies that appear to indicate a hazard, even when these studies may be of poorer quality.

FORBES: How Activism Distorts The Assessment Of Health Risks

Many analyses, though, suggest that, to have an appreciable effect on the oil sector, carbon taxes would have to be quite high in the neighborhood of two dollars on a gallon of gasoline precisely because today there are no readily available substitutes for gas or diesel or jet fuel.

NEWYORKER: Unconventional Crude