You use truly to emphasize that something has all the features or qualities of a particular thing, or is the case to the fullest possible extent. 真正地; 完全地
adverb [方式副词]真实地,如实地;真正地,完全地;诚挚地,真诚地;准确地;非常,很
Not all doctors truly understand the reproductive cycle. 并非所有的医生都完全地了解生育周期。