污染——一般来说，回收材料可以产生较少的污染，有助于保持我们的环境清洁。
Pollution—in general, recycling materials can produce less pollution, helping to keep our environment clean.
这是一个超乎你想象的重大环境问题——我们清洁梳洗的方式对我们的日常用水量很可能具有重大影响。
This is a bigger environmental issue than you might think - the way we choose to exfoliate and freshen up has potentially dramatic impacts on our daily water consumption.
他们认为，这表明，在清洁和道德之间有一种联系，而且通过改善我们周围的环境，就能改进我们的行为。
They believe that it suggests that there is a link between cleanliness and morality and that by improving our environments we can improve our behaviour.
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