完全理解英文

a general understanding of ....

comprehend thoroughly 透彻地理解/彻底理解thorough comprehension 透彻的理解/深入的理解

1 “我不能完全理解这篇文章（只能理解一部分）" ------- I don't quite understand this passage. 2 "我完全不能理解这篇文章（一点都不理解） ------- I don't understand this passage at all.

顺手采纳答案透彻理解 的英语是 thorough understanding 例句：To achieve this improvement, a thorough understanding of distillation principles andhow distillation systems are designed is essential.