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

Within walking distance of the course is a three-bedroom, 4, 000sqft 1915 Italian Renaissance-style house with 55 windows and a concert grand piano.

BBC: Prime time for golf holiday homes

Finding a grand piano still tuned at concert pitch he begins to play as if he had been practising every day instead of breaking his hands on bricks.

ECONOMIST: Good films, pity about the jury