胜败是兵家常事。

Both victory and defeat are but an everyday occurrence to a soldier.

Source: Tatoeba

Sentence Composition

1 胜败 shèngbài
  1. victory or defeat
  2. result
=2 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 是 shì variant of 是 shì
3 兵家常事 bīngjiāchángshì commonplace in military operations (idiom)