And oftentimes we roll our bow across more than one string or we play two strings at the same time to make what we call double stops or chords. So here's, I'll roll my bow.

并且我们经常将弓拉过一根以上的弦，或者我们同时演奏两根弦来制作我们所说的双音或和弦。所以在这里，我会鞠躬。