发布于：2025-07-06 05:50浏览量：185文/优校网
1.不老练的;单纯的,思想不复杂的,天真烂漫的
2.简单易懂的
3.不掺假的,真正的,纯正的
1.not knowing much about things such as art, literature, and music that educated people usually like; not owning fashionable and expensive things
2.used for describing simple tools and pieces of equipment that are not advanced