cylinder

n.

1. 圆筒, 圆柱体
   • What's the volume of this cylinder?
     这个圆筒的体积有多少?
2. 汽缸, 泵体
   • That jeep has four cylinders.
     那辆吉普车有四个汽缸。
   • They are working on all cylinders to get the job finished.
     他们正在竭尽全力争取把这工作干完。