theretofore
英 ['ðeətə'fɔ:] 美 [ˌðertə'foʊr]

adv.

在那以前，到那时为止；

英英释义

theretofore[ ,ðεətə'fɔ: ]

• adv.up to that time

  "they had not done any work theretofore"

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