1. hardfact, material, person: hard twardy 2. hardproblem, task: hard trudny 3. hardfight, work: hard ciężki 4. hard(not kind): hard niemiły 5. hardhit, push: hard mocny 6. hardfrost, winter: hard ostry 7. hard:
BackgroundTennis is a complex sport which is characterised by quick starts and stops as well as the involvement of several muscle groups during the different strokes. At elite level, there is a huge number of tournaments on different surfaces each year. So that the players can master the ...