Work idioms

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Across
  1. 3. low priority
  2. 4. to get started
  3. 6. to be familiar with current information
  4. 7. something is not complicated to understand
Down
  1. 1. to do something the easiest or quickest way
  2. 2. A long period of time
  3. 5. to start again after a plan or idea was not successful