方案很多，包括一个登上2009年头条的方案，因为该方案的专利持有人包括微软的缔造者比尔·盖茨。
Proposals abound, including one that made headlines in 2009 because the patent holders included Microsoft founder Bill Gates.
方案很多，包括一个登上2009年头条的方案，因为该方案的专利持有人包括微软的缔造者比尔·盖茨。
Proposals abound, including one that made headlines in 2009 because the patent holders included Microsoft founder Bill Gates.
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