Chinese phrase
请在〜小时内回复 qǐng zài 〜 xiǎo shí nèi huí fù
Meaning
Please reply within ___ hours
When to use it
This phrase asks for a reply within a set number of hours. It is a polite way to set a clear time limit, especially in business messages.
Example dialogue
为了尽快安排日程，请在48小时内回复是否可以参加会议。 wèi le jǐn kuài ān pái rì chéng qǐng zài 48 xiǎo shí nèi huí fù shì fǒu ké yǐ cān jiā huì yì
Please reply within 48 hours to confirm your meeting attendance so that we can arrange the schedule promptly.
收到，我将在两天内确认并回复你。 shōu dào wǒ jiāng zài liǎng tiān nèi què rèn bìng huí fù nǐ
Understood. I will confirm and reply to you within two days.