Tokyo stocks continued to tumble Wednesday, with the Nikkei hitting a two-week intraday low, dragged down by export-oriented shares on the yen’s appreciation amid reduced expectations for further monetary easing. The 225-issue Nikkei Stock Average shed 266.44 points, or 1.82% , from Tuesday to 14,340.44. The broader Topix index of all First Section issues on the Tokyo Stock Exchange was down 22.76 points, or 1.94%, at 1,151.80, according to Japan’s (Kyodo) News Agency. Shipping, real estate and paper shares were among the morning session’s major decliners.