在 + 年底 + Verb
年底 (niándǐ) means "end of the year" and is used to indicate the final period of a calendar year. It typically appears as a time expression in a sentence, often paired with 在 to say "at the end of the year." For instance, 在年底退休 means "to retire at the end of the year."
我们年底会搬到新办公室。
Wǒmen niándǐ huì bān dào xīn bàngōngshì.
We'll move to a new office at the end of the year.
年底了,大家都在忙着写总结。
Niándǐ le, dàjiā dōu zài máng zhe xiě zǒngjié.
It's the end of the year, and everyone is busy writing summaries.
她计划在年底之前把贷款还清。
Tā jìhuà zài niándǐ zhīqián bǎ dàikuǎn huánqīng.
She plans to pay off the loan before the end of the year.