at a rate seldom if ever...

Simin93

Senior Member
Persian-Iran
Hi there
I know the meaning of each word in the underlined part, but it doesn't make sense to me at all. Could you please explain it to me?


From this primitive start, the electric industry grew during the final 20 years of the nineteenth century at a rate seldom if ever exceeded by any technology.


Reference: Sample of TOEFL Exam

Thank you in advance
 
  • PaulQ

    Banned
    UK
    English - England
    at a rate seldom if ever exceeded by any technology. = at a rate that was seldom, if ever, exceeded by any technology.
     
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