Online Google Dictionary

beforehand 中文解釋 wordnet sense Collocation Usage Collins Definition
Adverb
/biˈfôrˌhand/,
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Before an action or event; in advance,
  1. Before an action or event; in advance
    • - rooms must be booked beforehand

  1. advance(a): being ahead of time or need; "gave advance warning"; "was beforehand with her report"
  2. ahead: ahead of time; in anticipation; "when you pay ahead (or in advance) you receive a discount"; "We like to plan ahead"; "should have made reservations beforehand"
  3. At an earlier or preceding time