(dated)act recklessly or unconventionally(旧)鲁莽(或不依惯例)地干
tilt at windmills
To confront and engage in conflict with an imagined opponent or threat.与假想的对手作战:面对假想的敌人或威胁;同假想的敌人或威胁作战
柯林斯高阶英汉双解学习词典释义
N-COUNT
风车磨坊;(风力发电的)风车
A windmill is a building with long pieces of wood on the outside which turn around as the wind blows and provide energy for a machine that crushes grain. A windmill is also a similar structure that is used to convert the power of the wind into electricity.
英汉词典释义
n.
风车;风车房
The sails of the windmill were wheeling round.风车的翼在转个不停。The grinder was powered by a windmill.这磨盘由风车提供动力。
假想的敌人(或坏事)
For some reason he thinks everyone is out to get him, but he’s really just tilting at windmills.不知为什么他觉得每个人都想害他,但其实他不过是在庸人自扰。
英英词典释义
Noun
1. a mill that is powered by the wind
2. generator that extracts usable energy from winds