史 shǐ 无 wú 前 qián 例 lì

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English Translation

Without precedent in history

Breaking it down

  1. 史: history
  2. 无: there is not
  3. 前: before
  4. 例: example

Source: Google Image Search

Usage

这次空难造成的伤亡，可以说是史无前例。

Source: baike.baidu.com