这就像大海捞针。

It is like fishing for a needle in the ocean.

《新英汉大辞典》

草垛里找针（大海捞针）。

To look for a needle in a haystack.

youdao

这就像是大海捞针一样难。

It's like trying to find a needle in a haystack.

youdao

要找到一个优秀的测谎家，如同大海捞针。

A Good Lie Detector is Hard to find.

youdao

就是大海捞针。

It is a needle in a haystack.

youdao

只能全靠运气了。让我们期待一个大海捞针般的机会，这样你就能成功了。

Only luck will. let's hope for a once-in-a-millenium planet-alignment-like opportunity so that you can succeed.

youdao

只能全靠运气了。让我们期待一个大海捞针般的机会，这样你就能成功了。

Only luck will. let's hope for a once-in-a-millenium planet-alignment-like opportunity so that you can succeed.

youdao