harmonica
n. 口琴（等于 mouth organ）
复数 harmonicas
例句
He played a tune on his harmonica.
他用口琴吹奏了一支曲子。
《牛津词典》
He made a harmonica out of the corncob.
他用玉米棒子做了一把口琴。
When he picked up a harmonica, he learned to play it in hours.
当他拿起口琴时，他在几个小时内就学会了吹。
