Like triads, seventh chords can be inverted by moving the lowest note up an octave.
（与三和弦一样，七和弦同样可以把最低音向上移一个八度的方法转位）

Root position is the same as a triad – the root is the lowest (bass) note.
（七和弦的基础音位与三和弦相同——根音是最低音） |

Let's invert the chord.
（我们把七和弦转位）

First inversion is also the same – the third is the lowest note.
（第一转位） |

Let's invert the chord again.
（再转位一次）

Second inversion is also the same – the fifth is the lowest note.
（第二转位与三和弦一样——五音变成了最低音） |

Let's invert the chord again.
（再转位一次）

Now, the seventh is the lowest note of the chord.
（现在七音变成了和弦的最低音）

This is called third inversion.
（这就是第三转位） |

Let's invert the chord one more time.
（我们再把和弦转位一次）

Notice that the chord returns to root position.
（注意到和弦回到了其基础音位） |

Use this chart for reference to seventh chord inversion.
（用这张表可以参考七和弦的转位）