Complete the following sentence: Liu competed for the Chinese national team at the Women's Chess Olympiad five times (1980<unk>1988), with an overall record of 68 total games played (+25, =27, -16). <unk> <unk> <unk> <unk> <unk>
️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️