instrument作仪器讲可数吗

　　Learning a musical instrument introduces a child to an understanding of music.

　　学一门乐器能引导孩子了解音乐。

　　The film explores the relationship between artist and instrument.

　　这部电影探究了艺术家和乐器之间的关系。

　　There is an internal circuit breaker to protect the instrument from overload.

　　内置有断路器，防止设备过载。

　　You can blend in so that the voice becomes just another instrument in the band.

　　你可以把声音协调一下，让它成为乐队的另一种乐器。