previous to
 在…之前


 Pre·vi·ous a.  Going before in time; being or happening before something else; antecedent; prior; as, previous arrangements; a previous illness.
 The dull sound . . . previous to the storm,
 Rolls o'er the muttering earth.   --Thomson.
 Previous question. Parliamentary Practice See under Question, and compare Closure.
 Previous to, before; -- often used adverbially for previously. “Previous to publication.” --M. Arnold.  “A policy . . . his friends had advised previous to 1710.” --J. H. Newman.
 Syn: -- Antecedent; preceding; anterior; prior; foregoing; former.

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