单词	head-scratcher
释义	head-scratcherˈhead-ˌscratcher noun [countable] informal something that is hard to understand, explain, or decide about:  John’s computer problem was a real head-scratcher.
随便看	hawk Hawke, Bob hawker hawk-eyed Hawking, Stephen hawkish hawkishness Hawksmoor, Nicholas Hawk, Tony Haworth hawser hawthorn Hawthorne, Nathaniel hay Haydn, Joseph Hayes, Rutherford hay fever hayloft haymaking Haymarket hayrick hayride haystack Haywain Hayward Gallery

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