Unit 4 Mission and exploration of our time

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Across
  1. 2. make sth. work much better again
  2. 4. increase sth. as much as possible
  3. 6. unusually good
Down
  1. 1. relating to fighting wars/done as part of a plan
  2. 3. an area of knowledge or teaching/a way of training
  3. 5. expressed in a way that is very clear and direct