"甚至可以说" can be translated into English as "one could even say", "it could even be said", or "you could even argue", depending on the context and the tone you want to convey. Here are some examples:
1、 One could even say that this is a turning point in history.
甚至可以说，这是历史上的一个转折点。
2、 It could even be said that he is the most influential person in this field.
甚至可以说，他是这个领域里最有影响力的人。
3、 You could even argue that this policy has had a positive impact on the economy.
甚至可以说，这项政策对经济产生了积极的影响。
These translations convey the idea of going a step further in making a statement or expressing an opinion, similar to the Chinese phrase "甚至可以说".