营销知识不足英语怎么说

"Lack of marketing knowledge" 是可以用来表示 "营销知识不足" 的英文表达。
"Lack" 是一个名词，意思是 "缺乏，不足"，"of" 是介词，表示所属关系，"marketing knowledge" 是可数名词复数，意思是 "营销知识"。
例句：
I'm struggling to keep up with the latest marketing trends because of my lack of marketing knowledge. (我很难跟上最新的营销趋势，因为我缺乏营销知识。)
I think I need to invest in some marketing training to improve my lack of marketing knowledge. (我想我需要投资一些营销培训来提高我缺乏的营销知识。)