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请输入您要查询的英文单词或汉字：
词汇
无用功
释义
无用功
wúyònggōng
基本
例句
idle work
他忙了半天，尽是无用功。
He was busy all day and achieved nothing.
随便看
mobile maintenance
mobile maintenance and support equipment
Mobile Maintenance Contact Team
mobile maintenance plant
Mobile Maintenance Support System
Mobile Maintenance Team
Mobile Maintenance Unit
mobile malware
mobile management
mobile management entity
mobile management entity-data link layer
mobile manipulator
mobile manipulators
Mobile manufacture collaboration chain
mobile manufacturing collaboration
mobile map
mobile mapping
mobile mapping system
mobile mapping technology
Mobile Map Service
Mobile Map Visualization
mobile marketing
mobile-marketing
mobile mass radiograph
mobile mass radiography
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更新时间：2026/8/27 0:05:14