大多数程序员会解决他们自己的问题，因此没有人知道他们有多棒(或者有多糟糕)。
Most programmers work on problems on their own, so no one knows how good (or bad) they really are.
一个问题是，含有可可的巧克力棒往往是含有非常多的卡路里，因此迪尔克和他的同事们用于测试的少量巧克力中每块只含有30卡路里。
One problem is chocolate bars containing cocoa tend to have lots of calories, so Taubert and his colleagues tested small amounts containing just 30 calories each.
单个的数字水印算法或方案难以应付多种攻击方法的攻击，为此，文章对应用多水印方法提高水印抗攻击鲁棒性问题进行探讨。
Therefore, problems of the multi-watermark method applied to increase the anti-attack robustness of the watermarking are discussed in this paper.
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