Thanks so much for buying this download of the sounds of American English.
十分感谢购买美式英语音标视频
These videos were designed not only to teach you specifically how each sound is made, but talk about another important characteristic of American English: stress.
我们设计这些视频是不仅希望可以具体教会你每个音标的发音，而且学会美式英语中另外一个重要特征：重音。
You will notice every Vowel or Diphthong video describes the sound in a stressed and unstressed syllable.
你会发现在每个元音或者辅音的教学视频中，都会提到重音和非重音音节。
In American English, stressed syllables are longer, and they have an up-down shape in voice.Uh, uh.
在美式英语中，重音音节时间比较长，并且会有一个扬抑的过程。啊，啊。
Unstressed syllables are shoter and flatter in pitch.
非重读音节会发音时间比较短，相比重读音节音高还会下降。
Also, they usually quieter, and can sound like some of the energy is taken out of the voice, uh, uh.
而且，他们通常发音较轻，就好像在发音时丢了一部分力气。
It's important to think about this as you learn the sounds.
在学习发音时，注意到重读/非重读是非常重要的。
Stress is one of primary charateristics of American English.
重读是美式英语中的一个基本特征。
If you're new to Rachel's English, I invite you to visit my website, RachelsEnglish.com, or my Youtube channel, Youtube.com/RachelsEnglish.
如果你是是Rachel's English的新用户，我邀请你浏览下我的网页：RachelsEnglish.com。或者我的Youtube频道：Youtube.com/RachelsEnglish。
I have close to 500 videos that go over sterss, sound comparisons, real life English conversations, idioms, the pronunciation of specific words and phrases, and so on.
我已经有将近500个视频，都是关于重读/非重读音节、发音对比、英语真实对话、惯用语、特殊单词和词组的发音等等。
Studying these will not only help you pronunciation, but your listening comprehesion as well.
希望这些视频不仅可以帮你学习发音，而且也可以学习听力。
Please sign up for my mailing list if you haven't already.
如果你还没有准备好，请把你的邮箱注册到我的邮件列表中。
It's free, and you'll get a weekly email with Eglish lessons, as well as stories from my life in America.
你每周会免费或者一封取材于我的美国生活的英语课程的邮件。
It's a great to keep in touch, and learning English for free.
这应该是一个沟通和学习英语的很好的方式。
Visit RachelsEnglish.com/newsletter to sigh up.
你可以访问 RachelsEnglish.com/newsletter去注册。
Enjoy these videos, and the adventure of teaching or learning English.
希望你能愉快的通过这些视频学习或者教授英语。
参考视频：https://www.bilibili.com/video/BV1nb411F7Ts?p=2&spm_id_from=pageDriver
Rachel'sEnglish美式音标Download Companion Video with subtitle
