Chinese phrase
可以撤回或更改〜吗？ ké yǐ chè huí huò gēng gǎi 〜 ma
Meaning
Can I withdraw or amend ___?
When to use it
Asks politely whether something can be withdrawn or changed. It requests permission to undo or revise a submitted item, often in a formal setting.
Example dialogue
我已提交申请材料，可以撤回或更改推荐信吗？ wǒ yǐ tí jiāo shēn qǐng cái liào ké yǐ chè huí huò gēng gǎi tuī jiàn xìn ma
I have already submitted my application materials. Can I withdraw or amend the letter of recommendation?
可以，请发新材料。 ké yǐ qǐng fā xīn cái liào
Yes, please send the new materials.