Complex sentence: As a young man in the 1980s, Dienstbier was a keen beekeeper, which he credits with helping him deal with the systematic pressure that the Communist regime in Czechoslovakia applied to him and his family.
Split into simpler sentences: As a young man in the 1980s, Dienstbier was an enthusiastic beekeeper. This activity helped him to deal with the systematic pressure that the communist regime in Czechoslovakia put on him and his family.