There, we have the pitch variation. 'This is it.' Stop T. 'This is it.'

这里就有音高变化。This is it.阻音 T。This is it.

There, we have the pitch variation.

在那里，我们有音高变化。

We have a lot more pitch variation because this fragment has two stressed syllables.

我们有更多的音高变化，因为这个片段有两个重读音节。

So in English, we have a lot of this contrast, of this unstressed stuff, less clear, way simplified mouth movements with this more stressed stuff, these longer syllables with the up-down shape, the pitch variation.

所以在英语中， 我们有很多这种对比，这种不重读的东西， 不太清晰，方式简化的嘴巴运动与这种更重读的东西，这些较长的音节具有上下形状， 音高变化。