The rise time and the peak energy and the sustained duration of some of these sounds are highly detrimental to our hearing.

某些声响的起始，高峰以及持续阶段,对我们听力的损害,是极大的。

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Time. Okay, pitch and time and pitch and duration, excellent, so those are the two dimensions of music and well, indeed we could even call them the axes of music because we tend to think of pitch on a vertical axis.

时间,音高和时间,或者是音高和时值,非常好,它们是音乐的两个维度,其实我们可以称呼它们为音乐的两轴,因为我们趋向于将音高放在竖轴上来考虑

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