“坚持锻炼”用英语可以说作 "to exercise consistently" 。
其中 "consistently" 意为“坚持地，始终如一地”，是一个副词，表示一种程度或频率。
例句：
I consistently exercise every day. 我每天都坚持锻炼。
He has been consistently exercising for the past year. 他过去一年一直坚持锻炼。
She has a consistent exercise routine. 她有一个坚持的锻炼计划。