Like intervals, triads can be inverted by moving the lowest note up an octave.
（和音程一样，转位同样适用于三和弦）

The lowest note, called the bass note, determines the name of the inversion.
（最低音，叫做底音，决定了转位的名字）

When the lowest note is the root of the chord, the triad is in root position.
（在和弦中，当根音是最低音时，这个三和弦处在基础音位） |

Next, let's invert the chord.
（下面开始和弦转位）

The bass note is now the third of the chord.
（现在底音成为了和弦的第三个音）

This is called first inversion.
（这叫第一转位） |

Let's invert the chord again.
（再转位一次）

Now, the fifth is the lowest note of the chord.
（现在五音成为了和弦的最低音）

This is called second inversion.
（这叫第二转位） |

Let's invert the chord one more time.
（现在我们把和弦再转位一次）

Notice that the triad returns to root position.
（注意到三和弦回到了它的基础音位） |

Use this chart for reference to triad inversion.
（这张图表示了三和弦的转位）