音乐家在演出前仔细地为她的琴弓上了松香。

The musician carefully rosined her ___bow before the performance.

他用小提琴的琴弓演奏吉他，创造出一种怪异的音效。

He created an eerie sound by playing the guitar with a violin ___bow.

琴弓的质量显著影响弦乐器的音色。

The quality of the ___bow significantly affects the tone of a stringed instrument.