ӣţţ  ţţ  ţţ  ţţô  ţţ  ţţ  ţţ淨  ţţ  ţţ  ţţͼ  ţţƽ̨  ţţ  ţţ淨  ţţ  ţţƻ  ţţ  ţţ  ţţ  ţţ  ţţ½