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yak 英[jæk] 美[jæk] n. 牦牛; 笑话; vi. <非正，贬>没完没了地谈些无关要紧的事，喋喋不休，唠叨; [例句]The influence of capability of Yak hairs treated with different plasma was studied.研究了各等离子体参数对牦牛毛纤维性能的影响。[其他] 第三人称单数：yaks 复数：yaks 现在分词：yakking 过去式：yakked过去分词：yakked
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