Wood smoke contains dangerous toxins that cause changes in human cells.Because wood smoke presents such a high health risk ,legislation is needed to regulate the use of open-air fires and wood-burning stoves. (B)Within the jurisdiction covered by the proposed legislation,most heating and cooking is done with oil and natural gas. 能否有人帮忙翻译一下B选项？ 这个选项是如何suggests less of need for legislation的？
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发表于 2011-8-12 01:47:21
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