In fact, ei is quite rare really.

事实上，“ei”组合很罕见。

The a vowel got changed to an ei vowel in middle English.

中古英语中的 a 元音改为 ei 元音。

The letter combination, ie, is more common than ei. It just appears more.

字母组合“ie”比“ei”更常见，出现频率更高。

And if we're saying the letter of the alphabet, we say ei.

如果我们说字母表中的字母，我们说 ei。

At least it is something I can say I have done, ei, Humphrey?

至少这是件我可以说我做成的事是吧，汉弗莱？

A vowel is a sound that flows out freely like ei, a, ee, ow, uw.

元音是像 ei、a、ee、ow、uw 这样自由流出的声音。

But there are some very common everyday words that use ei.

不过常用词中有几个单词中有“ei”。

And make sure to go through the diphthong of the ei as in day.

还要确保把“day”中的/ei/的双元音通读一遍。

Moist weather is forecasted to the west in the coming month due to the EI Nino weather system.

因厄尔尼诺现象，潮湿天气预计将在未来一个月光临西部地区。

In this lesson, we'll look carefully at the spelling of words that include " ie" and " ei" .

这本节课中，我们会注意观察包含“ie”和“ei”的单词的拼写。