plural cylinders
plural cylinders
Learner's definition of CYLINDER
[count]
1
: a shape that has straight sides and two circular ends圆柱体 — see picture at geometry 2
: something that is shaped like a cylinder圆柱状物:such as
a : a tube in which a piston of an engine moves(发动机的)汽缸 — see picture at engine b : the part of a gun that turns and that holds the bullets(枪的)旋转弹膛
on all cylinders
informal
: with the greatest possible amount of effort, power, or speed : at full capacity or speed竭尽全力;开足马力