She is (regarded) as one of the best writers in the country

问题描述:

She is (regarded) as one of the best writers in the country
请问regard后面加ed是不是因为被动语态的原因?请帮忙翻译整句话,

是被动语态
regard sb as sth 认为.是.
她被认为是国内最优秀的作家之一