三天之前我就知道了。
I knew it three days ago.
before; prior to; ago
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
三天之前我就知道了。
I knew it three days ago.
来之前打个电话。
Give a call before you come.