来自《耶鲁大学开放课程：聆听音乐 第8集 第8集》

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  The root of the triad is the bottom-
  根音是三和弦最底端的
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  most pitch of that triad.
  那个音
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  Supposing we didn't go C, E, G,
  假设不是C E G的顺序
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  but we decided to start with the E, G
  而是从E开始 G
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  and then put the C up on top, C,
  把C放到顶端 C
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  Well, that'd be what's called a chord inversion.
  这被称之为转位和弦
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  We're not going to get into that
  我们不会深谈这个
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  cause that takes us into heavy-duty music theory,
  因为这是很深的音乐理论
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  but it's--if we don't have root position
  但如果原位空缺
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  then we've got some other note of the triad in the bass,
  那我们就要把三和弦的其它音符放在底端
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  and we've got some kind of chord inversion,
  于是得到转位和弦
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  so that's what that particular term means up there.
  这个特别的术语就是这个意思