解释
◎ 鸣声上下 míngshēng-shàngxià
[Birds sing up and down in trees] 意思是鸟到处鸣叫。上下,树的上部和下部
读音:míng shēng shàng xià
首字母缩写:mssx
【拼音】míngshēngshàngxià