dà​hǎi​lāo​zhēn

needle in a haystack

Senses

大海捞针/ 大海撈針 dà​hǎi​lāo​zhēn needle in a haystack

(idiom) like fishing a needle from the sea; a difficult or impossible task where the chances of success are extremely small

References

variant 大海捞针/大海撈針 海底捞针/海底撈針
same_as 海底捞针/海底撈針 大海捞针/大海撈針