haystackKK [ˋheˏstæk] /ˈheɪˌstæk/发音名词1干草堆The children hid behind a haystack at the edge of the field.孩子们躲在田边的干草堆后面。片语1大海捞针、难以寻觅用于 a needle in a haystackFinding that one file on the old server was like a needle in a haystack.要在那台旧伺服器上找到那个档案,简直是大海捞针。用这个字练口说→相关片语needle in a haystack