LV 1.3 Autodidacts pre-listening

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Across
  1. 3. (formal) If you '_ a skill', you learn it.
  2. 4. If A _ to B, A helps to make B to happen.
  3. 6. here: an invention or a discovery
Down
  1. 1. another one
  2. 2. important
  3. 5. a long written story in which the characters and events are usually imaginary