dredge for a needle in the sea；fish a needle out of the sea；fish for a needle in the ocean；locate a needle at the bottom of the sea；
想要了解更多“大海捞针（比喻极难实现的汉语成语）”的信息，请点击：大海捞针（比喻极难实现的汉语成语）百科
dredge for a needle in the sea；fish a needle out of the sea；fish for a needle in the ocean；locate a needle at the bottom of the sea；
想要了解更多“大海捞针（比喻极难实现的汉语成语）”的信息，请点击：大海捞针（比喻极难实现的汉语成语）百科
