By success I dont mean what is usually thought of when the word is used.说到成功,我并不是想指当这个字眼(即成功)被提到时,而通常被(人们所)想到的含义.
By success我认为是状语,I dont mean what is usually thought of是主句,其中what is usually thought of又是宾语从句,when the word is used是时间状语从句.