人们考虑了各种解释，但最合理的解释似乎是妻子比丈夫为社会提供更多的支持。
Various explanations have been considered, but the most plausible is that wives provide more social support than husbands.
但即便这样还会有许多问题：一是碳的价格问题；还有资金如何使用才最合理；另外，这种支付形式是否永远都继续下去。
But there are plenty of question-marks still: the price of carbon, for one thing; how the money should best be used; and whether it would really be paid in perpetuity.
我可以试着合理饮食，并且可能会做到。但如果我直接决定我会吃到最卫生的食物，我就总能成功。
With health. I can try to eat right, and maybe I will. But when I deliberately decide that I will eat the healthiest food possible, I nearly always do.
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