Chinese phrase
请在〜前完成 qǐng zài 〜 qián wán chéng
Meaning
Please finish by ___
When to use it
This politely asks for completion before a stated time. It is common in work and task-related requests.
Example dialogue
这份报告请在周五前完成。 zhè fèn bào gào qǐng zài zhōu wǔ qián wán chéng
Please finish this report by Friday.
没问题，我会在周五之前把最终版发给你。 méi wèn tí wǒ huì zài zhōu wǔ zhī qián bǎ zuì zhōng bǎn fā géi nǐ
No problem, I will send you the final version by Friday.