鞭打快牛

biāndǎkuàiniú

鞭打快牛 — biāndǎkuàiniú

1. lit. to whip a fast ox; fig. to urge or push someone who is already working hard or efficiently — to give unnecessary pressure or demand more from someone already performing well.

   他已经完成了所有任务，你继续催促简直是在鞭打快牛。 tā yǐjīng wánchéng le suǒyǒu rènwù nǐ jìxù cuīcù jiǎnzhí shì zài biāndǎkuàiniú — He has already finished all the tasks; your continued urging is really like whipping a fast ox.