The function includes three levels: proposition function, logic connection function and discourse marking function. Furthermore, the three functions are grammaticalized in sequence.

其篇章连接功能包括三个层次，分别为：命题功能、逻辑关联功能和话语标记功能，并且这三个层次的功能是依次虚化的。

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"Signalling nanoparticles" would function like notification proteins, marking the spot where action was required.

“信号纳米载体颗粒”(Signalling nanoparticles)和“通知蛋白”分子有着类似的功能- - - - -标记药物作用位置。

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But marking it as belonging to the functional layer means that it will run only after a framework setup function has been invoked.

但是，如果把它标为属于functional层，就意味着只能在调用框架setup函数之后运行它。

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In the middle of its forehead is a black marking -- it doesn't actually serve a particular function, instead serving as a "legacy" design, where the toy's IR sensors once lived.

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It was a feat Morgan and his crew would repeat across the industrial landscape, arranging new equilibrium conditions and regulatory mechanisms in one sector after the other, filling in for a non-existent central banking function (the Federal Reserve was created in 1913, marking the start of a whole new story).

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