cylinder|cylinders

引擎的一个汽缸需要更换了。

One ___cylinder of the engine needs to be replaced.

这个引擎有六个气缸。

The engine has six ___cylinders.

这个几何图形是由两个圆形底面和一个侧面组成的圆柱体。

This geometric shape is a ___cylinder with two circular bases and a curved side.