他写了欠条。
He wrote an IOU.
IOU; certificate of indebtedness
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.
他写了欠条。
He wrote an IOU.
欠条还在。
The IOU is still there.