1.unmanned adj., A. not having a human presence or operator., 2. launch v., B. to begin something such as a plan, 3.orbit v., C. the curved path through which objects in space move around a planet or star, 4.light up v., D.If your face or eyes light up,or if a smile lights up your face, you suddenly look happy, 5. pioneer v, E. to be a leader or innovator, 6.supply v, F. to provide something that is wanted or needed, 7. unreadable adj., G. badly written to be worth reading, 8. come across ph.v, H. to find something by chance, 9. work out ph.v, I. to understand something, 10. discover v, J. to find information, a place, or an object, especially for the first time, 11.revolutionise v, K. to completely change something so that it is much better

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