它学起来很简单用英文怎么说

"It is easy to learn" 的英文表达是 "It is easy to pick up/grasp."

这是一个常用的表达方式, 其中 "pick up" 意思是 "学会" 或 "掌握", "grasp" 意思是 "理解" 或 "掌握".

例句:

"This new software is easy to pick up, even for beginners." (这个新软件很容易学, 即使是初学者也能学会.)
"The concept is easy to grasp, even for non-experts." (这个概念很容易理解, 即使是非专家也能掌握.)