1.Partly it is because no one has bothered to look at the evidence.
bother to do 费心做某事
I was so uninterested in the result that I didn't even bother to look at it.
我对结果一点都不感兴趣,连看都没看
。2.Yet perhaps the most important reason is that people dislike acknowledging trade-offs.
trade-off 交换,交易;权衡;协定
There is a trade-off between the benefits of the drug and the risk of side effects.
在药物的疗效和副作用之间有个权衡利弊的问题
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