这是一个系列产品。
This is a series of products.
series; set
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.
这是一个系列产品。
This is a series of products.
这个系列的书很好。
The books in this series are good.