最后但并非最不重要的是，演讲者必须牢记简洁的价值。

Last but not the least, a speaker has to keep in mind the value of brevity.

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最后但并非最不重要的是，过度使用手机意味着与生活在现实生活中的人们面对面交流的机会大大减少。

Last but not least, excessive use of mobile phones means much less chance of face-to-face interactions with the people who populate their real lives.

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最后，但并非最不重要的，有贝多芬的第九交响曲。

Last but not least, there is Beethoven's ninth symphony.

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