Meaning of gǔn kāi:
滚开
to boil (of liquid); boiling hot; Get out!; Go away!; fuck off (rude)
Shuǐ yǐjīng kāishǐ gǔn kāi le, qǐng xiǎoxīn.
水已经开始滚开了,请小心。
The water has started to boil, please be careful.
Shuǐ tài gǔn kāi le, nǐ xūyào xiǎoxīn.
水太滚开了,你需要小心。
The water is boiling hot, you need to be careful.
Tā duìzhe péngyǒu dà hǎn: "Gǔn kāi!"
他对着朋友大喊:"滚开!"
He shouted at his friend: "Get out!"
Tā hěn shēngqì de duì wǒ shuō: “Gǔn kāi!”
他很生气地对我说:“滚开!”
He angrily said to me: “Go away!”
Tīng dào zhège wèntí, wǒ shēngqì de shuō: “Gǔn kāi!”
听到这个问题,我生气地说:“滚开!”
Hearing this question, I angrily said, “Fuck off!”