单词	cylinder
释义	cylindercylinder /ˈsɪləndɚ/ ●●○ noun [countable] Etymology ETYMOLOGYcylinder Origin: 1500-1600 Latin cylindrus, from Greek, from kylindein to roll 1 math, geometry a shape which has two circular ends and straight sides2an object or container such as a can which is in the shape of a cylinder:  a cylinder of oxygen3the tube within which a piston moves forward and backward in an engine:  a four-cylinder engine4run/hit/fire on all cylinders to operate or perform very well:  When we’re hitting on all cylinders, we’re hard to beat. [Origin: 1500–1600 Latin cylindrus, from Greek, from kylindein to roll]
随便看	feeble-minded feeble-mindedly feeble-mindedness feed feedback feedbag feeder feeder school feeding feeding frenzy feeding ground feel feeler feel-good feeling feelingly feet feign feint feisty feldspar felicitations felicitous felicitously felicity

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。