Complex sentence: This year's "The Voice of China" introduced a twist-during the Round of 16, instead of selecting one of four contestants from each of the four teams, each of the four selection shows will feature one contestant from each of the four teams.
Split into simpler sentences: This year's "The Voice of China" introduced a twist. During the Round of 16, instead of selecting one of four contestants from each of the four teams, each of the four selection shows will feature one contestant from each of the four teams.