HSK 7-9
改日
gǎirì副
another day; some other day
我今天另有安排改日再谈。
Wǒ jīn tiān lìng yǒu ān pái gǎi rì zài tán.
I have other plans today, so let us discuss it another day.
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Appears across levels (7-9) in the HSK 3.0 word list.