为了学习他的系统，人们必须首先知道如何书写字母表中的字母，并学习它们的发音。

To learn his system, people must first know how to write letters of the alphabet and learn which sounds they represent.

youdao

如果您有一个词不在内建的词汇表中，TTS就可以合理地猜测这个词该如何发音。

If you have a word that is not in the built-in vocabularies, the TTS can make a reasonable guess at how it should sound to be spoken.

youdao

诚实说，你的发音不太好。主系表。

To be honest, your pronunciation is not so good.

youdao