ӣţţ  ţţ  ţţô  ţţô  ţţ淨  ţţ  ţţ  ţţ½  ţţ  ţţ  ţţ  ţţ  ţţƽ̨  ţţ  ţţ淨  ţţͼ  ţţֱ  ţţ  ţţ淨  ţţ