To link what has gone before with what comes after; to connect the preceding and the succeeding, often referring to a smooth transition or structural coherence in writing or speech.
这位演说者巧妙地运用了过渡句，使得他的演讲起到了束上起下的作用，让听众很容易理解每个部分的联系。
The speaker skillfully used transitional sentences, making his speech connect the preceding and succeeding points, allowing the audience to easily understand the links between each part.
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