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题库 / Prep2008E1-SC-243
Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system's ability to deal with all other pollutants.
an especially serious pollutant because it diminishes the respiratory system's ability to deal
an especially serious pollutant because of diminishing the respiratory system's capability of dealing
an especially serious pollutant because it diminishes the capability of the respiratory system in dealing
a specially serious pollutant because it diminishes the capability of the respiratory system to deal
a specially serious pollutant because of diminishing the respiratory system's ability to deal
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1措辞 especially 尤其，有比较的意味；specially 特别的， 没有这个意味
2 不定式和V-ing的区别
3 because & because of 的区别
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