名詞 cross check:

1. an instance of confirming something by considering information from several sources
   同義詞：crosscheck
2. an illegal check (chopping at an opponent's arms or stick)
   同義詞：crosscheck

動詞 cross check:

1. check out conflicting sources; crosscheck facts, for example
   同義詞：cross-check

1. Cross-check your answer by using a calculator.
   用計算器核對一下你的答案。