过渡不明晰，演讲者就会在不经意之间使听众摸不着头脑，就好像演讲者另起炉灶进行演讲一样。

Without clear transitions, a speaker can inadvertently leave the audience scratching their heads as the speaker takes off in a new direction in the presentation.

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我需要明晰锐利的头脑。

I need my lucidity.

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若明晰的观念在头脑闪烁。

And if the mind with clear conceptions glow.

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