There are also ways to mix the two, for example, asking for explicit voting, but comparing it to implicit data (such as page views, comments, or other recordable user actions).

也有将两种中庸一下的办法 比如要求明确的投票 但把它与隐含的数据进行对比（如页面请求 评论 或其他可记录的用户动作）。

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He was explicit about his intention to overhaul the party's internal voting system.

他对自己彻底革新该党内投票体制的意图直言不讳。

《柯林斯英汉双解大词典》

But the voting rules are explicit.

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Lib Dems, for example, had to consider whether voting against a policy on student finance which reneged on their explicit promise to the voters would bring down the coalition, which they would regard as promoting the greater good.

BBC: When MPs must choose between conscience and party