不用加the。
erhu二胡；二胡演奏；午后的胡琴；
例如The erhus structure is quite simple.
She threw another question,\" Do you like Erhu?\"
她又问“你们喜欢二胡吗？”
The Creation and Development of Contemporary Erhu Music.
当代二胡音乐创作发展之研究。
Rational thinking and suggestion to the structure of erhu.
对二胡结构的理性思考及建议。
