The height of the bicycle seat is adjustable.

这辆自行车车座的高度可以调节。

《牛津词典》

Both the concepts of alternating the height of each window seat and using steps to create a second tier of middle seating are incorporated here.

这两个概念综合，调整每个窗口的高度座椅和使用步骤，可以开发两个座位的中间空间。

youdao

Thee height of the bicycle seat is adjustable.

这辆自行车车座的高度可以调节。

youdao

Its cantilever mechanism between the seat and seatback required no calibration of tension no matter who sat in the chair, regardless of height and weight.

FORBES: The Chair Men