英语单词“scratch one’s head”的翻译、意思、用法、释义-英汉词典

单词	scratch one’s head
释义	见:scratch one’s head
随便看	ion-beam mixing ion-beam scanning ion chamber ion channel ion cloud ion cluster ion column ion concentration ion counter ion current ion-cyclotron-resonance mass spectrometer ion density ion detector ion emission ion engine Ionesco, Eugène ion etching ion exchange ionexchange chromatography ion-exchange column ion-exchange electrolyte cell ion-exchange resin ion-exclusion chromatography ion fractionation ion gauge