The salient point that I want to bring out here is the contrast Chris made between 20th Century “free” and 21st Century “free”: 20th Century free wasn't really free since there was always a catch.
在这里我想提到的重要观点是Chris把20世纪的“免费”和21世纪的“免费”作比较：20世纪的“免费”并不是真的免费，因为总是需要先付出一些东西。
E. H. Gombrich was the first to point out that modes of representation are, by contrast, conventional, and therefore have a cultural, socio-historical base.
冈布里奇首先指出：呈现的方式不是那样，而是习俗性的，因此有一个文化的、社会-历史的基础。
Contrast to FOO electronic voting scheme, we analyze the efficiency of our scheme briefly and point out that the scheme can be used in the elections in a largescale.
对照FOO电子选举方案，我们简要分析了该方案的实现效率，指出该方案可适用于较大规模的选举。
Contrast to FOO electronic voting scheme, we analyze the efficiency of our scheme briefly and point out that the scheme can be used in the elections in a largescale.
对照FOO电子选举方案，我们简要分析了该方案的实现效率，指出该方案可适用于较大规模的选举。
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