Chinese phrase
还书期限是〜 huán shū qī xiàn shì 〜
Meaning
The deadline for returning books is ___
When to use it
States when books must be returned and gives a date or time. It is common in notices and reminders and has a clear, neutral tone.
Example dialogue
各位同学，还书期限是本周五，请注意。 gè wèi tóng xué huán shū qī xiàn shì běn zhōu wǔ qǐng zhù yì
Everyone, the deadline for returning books is this Friday, so please take note.
好的，我会按时还的。 hǎo de wǒ huì àn shí huán de
All right, I'll return it on time.