The doublet song likely owes its spread to the birds' migration habits.

这首双音节歌曲的传播很可能要归功于鸟类的迁徙习性。

Some two-syllable words in English look the same for the noun and the verb.

英语中一些双音节单词的名词和动词看起来是一样的。

With two syllable adjectives that end in the letter -y, we always add -er.

对于以字母 y 结尾的双音节形容词，我们总是要加-er。

There are some really straightforward patterns you can follow with two syllable words in English in terms of syllable stress.

就音节重读而言，英语中的双音节单词有一些非常直接的模式。

So, this happens across the board with many two-syllable words, not just with the CON prefix but with other ones too, we'll stick to these for now.

所以这个就是相对于双音节词的例外，不仅仅是 con 前缀是这样，其他也会这样，我们现在就说这种情况。

And one more thing Stella was mentioning was two syllable words.

斯特到的一件事就是双音节的单词。

So sad. Funny. These are one and two syllables sad.

真难过。很好笑。这些是单音节和双音节的难过。

These are some two-syllable adjectives that we can use " er" on.

。 这些是一些我们可以在其使用“er” 的双音节形容词。

Our last word today is REGION. A two-syllable  word with first syllable stress. It's an area or place that's separate, or different than other  parts. The plant grows in tropical regions.

我们今天的最后一句话是区域。 具有第一个音节重音的双音节词。它是一个独立于或不同于其他部分的区域或地方。 这种植物生长在热带地区。

As we've seen, when the newer pronunciation emerged, the two-syllable suffixes were often reduced to a single syllable, from tian and cian to shun.

正如我们所见， 当新的发音方式出现时，那些原本为双音节的后缀常常被缩减至单音节，从“tian” 和“cian” 变成了“shun” 。

It sounds like there's a noise coming off of it like a whine noise or a two-syllable noise.

听起来像是有什么声音从它那里发出，像是呜咽声或双音节的声音。

A two-syllable word with first syllable stress.  Labor. It's a noun, it means physical, or mental effort. The cost of repairing  the car includes parts and labor.

具有第一个音节重音的双音节词。 劳工。 它是一个名词， 意思是体力，或者脑力。 修理汽车的费用包括零件和工。