[ hǎidǐlāozhēn ] dredge for a needle in the sea; fish for a needle in the ocean; hunt [look] for a needle in a haystack; impossible task; look for a needle in a bottle [bundle] of hay; look for a needle in the ocean; try to recover a needle from the bottom of the sea; useless [vain] effort 短语和例子 这回要在庄稼地里搜捕，那不是海底捞针？ looking for them now is like fishing for a needle in a haystack
Example Sentences:
1.
Trying to find a small boy in the large crowds at the football match was like looking for a needle in a haystack 要在观看足球赛的人群中找一个小男孩真像是海底捞针，谈何容易。
2.
There are a hundred or so different postures with wonderful names like " white crane spreads its wings " , " needle at sea bottom " , " wave hands like a cloud " , which give an idea of what you are expected to do , but you don ' t have to learn them all 太极拳共有100个左右的姿势，它们都有绝妙的名称，如: “白鹤亮翅” ， “海底捞针” ， “云手”等，十分清晰地告诉你该怎么演练，但你不必所有姿势都学。
