之前 /ʈʂʰwəɪ tɕʰjɛn/ Adverb

English
previously
Polski
wcześniej

Example

  • 这座楼房先前曾被用作酒店。(先前 曾被用作酒店)
  • The building had previously been used as a hotel.
  • “先前”强调时间点，语气比“以前”更正式。