"真数"是个多义词，它可以指真数（汉语词语）,真数（数学名词）。
n. antilog ; antilogarithm
最简单的真数是自然数，即平时我们口数的一、二、三…。
The simplest real Numbers are the natural Numbers, which are just the ordinary counting number l, 2, 3...
大屏幕、高保真数字电视和DVD有可能改变电影的拍摄方法。
Big-screen , high-definition digital television and DVDs may change the way movies are shot.
每开始新学一条曲目都要认真数拍子，特别是对钢琴初学者与青少年。
Start all pieces by counting carefully, especially for beginners and youngsters.
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