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来源：雅诚德英语网
The researchers reckon that the reason why so many honey bees are dying is down to a combination of factors that are found only, so far, in America.
研究者承认为什么如此多蜜蜂死去的原因是一系列因素综合作用的结果，到目前为止只在美国出现。
The researchers reckon that the reason why so many honey bees are dying is down to a combination of factors that are found only, so far, in America.
研究者承认为什么如此多蜜蜂死去的原因是一系列因素综合作用的结果，到目前为止只在美国出现。