While it\\\'s true that dieters who forsake bread and gorge on bacon tend to drop weight (at least in the short-term), it\\\'s never been clear why.
当减肥者真的放弃了面包和狼吞虎咽火腿的时候会有变轻的的趋势(起码在短期内是这样)。 人们从没弄清楚这是为什么。
So, it's a trivial matter, by looking at what is the weight and how far does it drop, to say OK, how much work is done by the paddle wheel.
好,让我们看看重物的质量,以及它下落的距离,就知道桨轮做了多少功。
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