Chinese phrase
申请延长〜 shēn qǐng yán cháng 〜
Meaning
apply for an extension of ___
When to use it
It means formally asking to extend a deadline or period. It is common in requests about school, work, or official arrangements and has a polite, formal tone.
Example dialogue
老师，我能申请延长论文提交期限吗？ lǎo shī wǒ néng shēn qǐng yán cháng lùn wén tí jiāo qī xiàn ma
Professor, may I apply for an extension of my thesis submission deadline?
需要提交延期理由并经系里批准。 xū yào tí jiāo yán qī lǐ yóu bìng jīng xì lǐ pī zhǔn
The reason for the extension must be submitted, and department approval is required.