I would like to ask: aerospace research is expensive for national defense, information protects the frontier, training at home and abroad is prosperous, and people who live and work in peace and contentment are at leisure. The meaning of!
Space research is valuable for national defense, and information is used to defend the frontier. People who are prosperous in training at home and abroad and live and work in peace and contentment are at leisure.
The meaning is very good: attach importance to foreign military development, defend the country, develop the economy at home, let the people live a rich life and build a harmonious society.
It's just a boundary. Leisure doesn't rhyme, unlike metrical poetry.