Chinese phrase
能否由〜代为提交？ néng fǒu yóu 〜 dài wéi tí jiāo
Meaning
May ___ submit it for me?
When to use it
Asks whether another person may submit it for the speaker. It is a polite form used when personal submission is not possible or the rules need checking.
Example dialogue
老师，我想问一下，能否由同学代为提交？ lǎo shī wǒ xiǎng wèn yí xià néng fǒu yóu tóng xué dài wéi tí jiāo
Excuse me, may a classmate submit it for me?
不行，学校规定必须本人或监护人亲自提交。 bù xíng xué xiào guī dìng bì xū běn rén huò jiān hù rén qīn zì tí jiāo
No. School rules say that the person concerned or a guardian must submit it in person.