后者动力装置也是最节俭的类别之一。
The latter power unit is also one of the most frugal in its category.
我们可以参照看一看世界上最节俭的有钱人们是如何生活的。
Take a peek at some of the most frugal wealthy people in the world.
有人说，王永庆可能是世界上最节俭的亿万富翁了！
It is said that Wang Yung-ching may be the world's most frugal of the billionaire!
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