英语词汇“在从事某项活动”的翻译、意思、用法、释义-英汉汉英词典

单词	在从事某项活动
释义	在从事某项活动phr.at it〈口〉忙个不停，在工作，在从事某项活动
随便看	self powered detector self-powered detector self-powered meter self-powered neutron detector self-power loudspeaker self praise self-praise selfpraise self-preoccupation self-preoccupied self-preparation self presentation self-presentation self preservation self-preservation selfpreservation self-preserving self-pride self-priming self-priming centrifugal pump selfpriming centrifugal pump self-priming characteristic self-priming characteristic test self-priming device of centrifugal pump self-priming pump