sooner or later：迟早。
"Oh,St.John,I know that isn't the reason.Tell me the truth!" I said. "Well,I'd rather not tell you just now,but I suppose you'll find out sooner or later. So I'll tell you a little something about myself. Did you know that my full name St.John Eyre Rivers?" "No,I didn't!But then what..." And I stooped,as I had begun to make a connection. Could it be true?but St.John continued to talk. "you weren't told very much about your family,were you,Jane?" I shook my head. "My mother's last name was Eyre,"he said.