Whereas the use of synthetic fertilizers has greatly expanded agricultural
productivity in many parts of the world,an increase in their use can create
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serious environmental problems such as water pollution, and their
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substitution for more traditional fertilizers may accelerate soil structure
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deterioration and soil erosion.
答案就是畫線的部分
我的疑問是
whereas這個疑問詞做對比時
不需要像unlike compare to 一樣結構完全對比嗎??
the use of .... 和 an increase 結構不同不是嗎???
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