形容呼吸十分急促to puff and pant; to puff like an ox

• 走不到一半，已经汗滴如豆，气喘如牛，许多人已不能坚持。

  Before they had walked halfway, giant beads of sweat poured out and they were puffing and panting like oxen. Many people could not stand it any more.

• 在每一次气喘如牛、步履踉跄时，都咬紧牙关决不放弃。

  Every time one found oneself panting and staggering, one would always grit one's teeth, determined not to give up.