About 10% of Japanese teenagers are overweight. Nutritionists say the main culprit is increasing reliance on Western fast food.

约10%的日本青少年都超重。营养学家们称主要的原因是他们越来越依赖西方快餐。

《柯林斯英汉双解大词典》

Once again, road transport is the main culprit since it alone accounts for 84% of the carbon dioxide emissions attributable to transport.

再次强调，公路运输是罪魁祸首，因为仅公路运输就占了运输产生的二氧化碳排放量的84%。

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Carbon dioxide, in his view, is the main culprit.

在他看来，二氧化碳才是罪魁祸首。

youdao

The majority of them, in hindsight, have identified a poor entry price as the main culprit.

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The main culprit was an acquisition that looked like a good idea at the time.

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Food prices were the main culprit, accounting for over half of the price increases.

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