音标

例句：

1. 1. The teacher gave us some tips on how to pronounce the English words correctly.
   老师教我们如何正确发音英语单词。
2. 2. Musicians often use musical notation to indicate the pitches and rhythms of a piece of music.
   音乐家经常使用音乐记号来表示音乐作品的音高和节奏。
3. 3. In this lesson, we will learn about the different sounds that can be represented by musical notes.
   在这节课中，我们将学习不同的音符可以代表的不同声音。