资料来源 : pyDict

先约;预约

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Preengagement \Pre`["e]n*gage"ment\, n.
   Prior engagement, obligation, or attachment, as by contract,
   promise, or affection.

         My pre["e]ngagements to other themes were not unknown
         to those for whom I was to write.        --Boyle.