训练接听电话时的声音和用语，你的声音应该充满朝气，用语应该积极向上，即使是在情绪低落的日子里。
Train your voice and vocabulary to be positive when phone answering, even on a "down" day.
然后因为英语不是我们的母语，我们必须训练你的发音器官发出陌生的声音。
And then since English is not our native tongue, we must develop the muscles of your speech organs to produce unfamiliar sounds.
只要任何接受过好的音乐听音训练的人，都可以告诉你所作的吉他弹出来的是怎样的声音。
Almost anyone with a good trained musical ear will tell you what sound of guitar you have created.
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