错字连篇 meaning in Chinese

a link of erroneous characters

Nor can they write fluently , being unable to put down on paper words they still can say . their compositions would make the reader helplessly sad sketchy and hollow , full of mis - written characters and misused words , and poor in organisation and paragraphing
作文更是“惨不忍睹” ,篇幅短内容空洞错字连篇词不达意条理不清段落不明,写的人不知所云,看的人一头雾水。