Grand piano. Stretch to change length from baby grand to concert grand size.

大钢琴。可拉伸以改变其长度，从小型钢琴变为平台大钢琴。

youdao

Grand piano. Stretch to change length from baby grand to concert grand size.

大钢琴。可拉伸以改变其长度，从小型钢琴变为平台大钢琴。

youdao