The evidence standard of prosecution is not only a theory question, but also a practice question.

公诉证据标准既是一个严肃的理论问题，又是一个重大的实践问题。

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That means people can practice table tennis not only with humans but also with a robot.

这意味着人们不仅可以和人一起练习乒乓球，还可以和机器人一起练习。

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For a long time biologists believed that male deer used buck rubs not only to clean and polish antlers but also to provide practice for the ensuing male-to-male combat during the rut.

长期以来，生物学家们认为雄鹿擦痕不仅可以清除并磨光鹿茸，还可以借此练习发情期时雄鹿之间的角斗。

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The prime minister, critics say, is not only damaged by guilt-by-association with Mr McBride, but must also answer for a long-standing practice of employing advisers known to use underhand tactics.

BBC: Key people in e-mail smear row

There, leadership must be exhibited on every play for the team to have a chance at victory, but it also must be earned in the long hours of practice, strategy and introspection before a game.

FORBES: Leadership: On the Field and Off

Not only do they verify an organization's 501c3 public charity status (a standard practice), but they also review an organization's operating materials to ensure that its work matches donors' expectations.

FORBES: How To Find The Right Donor-Advised Fund (And Why)