Chinese shares edged down 0.67 percent Thursday under sell-off pressure, said market dealers. The benchmark Shanghai Composite Index slide 0.67 percent, or 18.93 points, to close at 2,797.32. The Shenzhen Component Index went down 1.12 percent, or 120.83 points, to 10,699.91. 我要收藏 Combined turnover shrank to 201 billion yuan (29.4 billion U.S. dollars) from 219.82 billion yuan the previous trading day. Losers led gainers by 528 to 282 in Shanghai and 463 to 230 in Shenzhen.