他坐在拥挤的酒吧的高脚凳上。

He perched on a ___stool at the crowded bar.

钢琴家在开始前调整了凳子的高度。

The pianist adjusted the height of the ___stool before beginning.

那家古董店有一张雕刻精美的三脚凳。

The antique shop had a beautifully carved three-legged ___stool.