It's still hard to tell who will emerge victorious.

鹿死谁手尚难逆料.

《现代汉英综合大词典》

The election was a toss - up, the winner still hasn't been determined.

这场选举胜负难分,截至目前还不知鹿死谁手.

辞典例句

As to who will win the prize , we'll find out soon.

到底鹿死谁手, 一会儿就见分晓了.

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