4 sentences

1. 我现在有一件急事，想要离开。

   wǒ xiàn​zài yǒu yī​jiàn jí​shì, xiǎng​yào lí kāi.

   I have an urgent matter and I need to leave.

   Source: CCMatrix

2. 告诉他是急事。

   gào​sù tā shì jí​shì.

   Tell him it's urgent.

   Source: OpenSubtitles

3. 这件事可以等到下次开会，不是急事。

   zhè jiàn shì kě​yǐ děng​dào xià​cì kāi huì, bù​shì jí​shì.

   The matter can wait until the next meeting, it's not urgent.

   Source: UM-Corpus: Education

4. 今天早上我接到电话，要我今天下午飞往香港办急事。

   jīn​tiān zǎo​shang wǒ jiē dào diàn​huà, yào wǒ jīn​tiān xià​wǔ fēi​wǎng xiāng​gǎng bàn jí​shì.

   I was phoned this morning asking me to fly to Hong Kong this afternoon on urgent business.

   Source: UM-Corpus: Education