key note speaker是什么意思

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key note speaker主讲人例句：

1.Note the speaker's tone of voice and body language to get the full meaning.而要留心讲者的声调和肢体语言以听取完整的涵意。

2.Nevertheless, talk of the Confederation is still being bandied about, and if one takes note, marks the speaker as one reluctant to accept the true nature of the alien presence.不过，对联邦的谈论仍然在传递着，如果有人注意的话，这标志着说话人不愿意接受外星人存在的真实本质。

3.Note: Never connect the166XL's input to the speaker output of an instrument or power amplifier.注意：禁止连接166XL的输设备的扬声器输出或功放输出。