或者当介绍到他们曾演奏过的乐器时，他们能演奏的很好。

Or when introduced to an instrument they once played, they can perform beautifully.

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课程将探讨独奏乐器在敬拜团队中所扮演的角色，并介绍吉他和弦及其记谱法。

This lesson examines the role of the solo instrument in a worship team and introduces participants to contemporary chords and contemporary chord notation.

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接下来我们来介绍一下各种乐器，还有乐器产生声音的原理。

Let's go on now to talk about instruments and how instruments produce sound.

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