英语词汇unhelpful的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	unhelpful
词根词缀	Online Etymology Dictionary unhelpful adj. 1590s, from un-(1) "not" + helpful. Related: Unhelpfully; unhelpfulness.
随便看	bismuto- bison bisque bissextile bissh- bistro bit bitch bitching bitchy bite bitmap bi-tri- bitsy bitten bitter bitter- bitter end bittern bitterness bitters bittersweet BitTorrent bitty bitumen

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