今天太忙了，改天再聊吧。
Today is too busy; let us talk another day.
改天
another day; some other time; to find another day (for appointment etc)
adverb HSK 3.0 · Band 5
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
改
天
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
改
See it in sentences
改天有空来看我的新书吗？
Can you come see my new books another day?