It takes two

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Across
  1. 2. showing very different feelings about someone
  2. 4. able to live in land and water
  3. 5. a piece of music that is performed by a musician
  4. 6. having two different parts
  5. 9. able to speak and understand two languages
  6. 10. a building divided into two separate homes
Down
  1. 1. happening twice a year
  2. 3. able to use both hands equally well
  3. 7. able to be understood in more than one way
  4. 8. a vehicle with 2 wheels