这个圆的半径很长。
The radius of this circle is long.
radius
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.
这个圆的半径很长。
The radius of this circle is long.
你知道半径怎么算吗?
Do you know how to calculate the radius?