Another way to think about word stress in sentences is to think about tone units.

第二种理解句子中单词重音的方法是理解一种叫做声调单位的东西。

It's broken up into these little tone units or what I tend to refer to as phrases.

它被分解成一些小的音调单位，或者我通常所说的短语。

And the main stressed word in each of those tone units or those phrases is often called the tonic syllable.

每个声调单位或词组中的主要重读词通常被称为主音音节。

So, you can hear how it's the last content word in those phrases that tends to get the main stress or we would say that that's the main stressed word in that tone unit or in that phrase.

所以，你可以听到，最后一个实词，在音调单位里，或者在那个短语里，它是如何在句子里重读的。