作为一个初学者，他先从简单的瑜伽动作开始练习。

As a ___beginner, he started with simple yoga poses.

我妹妹刚开始学游泳，她还是个新手。

My sister is just learning to swim; she is a ___beginner.

这本书对初学者来说太难了。

This book is too difficult for a ___beginner.